This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.
Arnfield, A.J. (2003): Two decades of urban climate research: are view of turbulence, exchanges of energy and water, and the urban heat island. Int. J. Climatol. 23: 1 – 26. DOI: 10.1002/joc.859ArnfieldA.J.2003Two decades of urban climate research: are view of turbulence, exchanges of energy and water, and the urban heat island2312610.1002/joc.859Open DOISearch in Google Scholar
Cabrera, E.D., Carretón, E., Morchón, R., Falcón-Cordón, Y., Falcón-Cordón, S., Simón, F., Montoya-Alonso, J.A. (2018): The Canary Islands as a model of risk of pulmonary dirofilariasis in a hyperendemic area. Parasitol. Res., 117(3): 933 – 936. DOI: 10.1007/s00436-018-5774-1CabreraE.D.CarretónE.MorchónR.Falcón-CordónY.Falcón-CordónS.SimónF.Montoya-AlonsoJ.A.2018The Canary Islands as a model of risk of pulmonary dirofilariasis in a hyperendemic area117393393610.1007/s00436-018-5774-1Open DOISearch in Google Scholar
Eurostat, The Statistical Office Of The European Union (2018a): Population on 1 January by age groups and sex - functional urban areas. Unit E4: Regional statistics and geographical information. Retrieved July 12, 2019 from http://appsso.eurostat.ec.europa.eu/nui/show.do?dataset=urb_lpop1&lang=enEurostat, The Statistical Office Of The European Union2018aUnit E4: Regional statistics and geographical information. Retrieved July 12, 2019 fromhttp://appsso.eurostat.ec.europa.eu/nui/show.do?dataset=urb_lpop1&lang=enSearch in Google Scholar
Eurostat, The Statistical Office Of The European Union (2018b): Population on 1 January by broad age group, sex and metropolitan regions. Eurostat. Unit E4: Regional statistics and geographical information. Retrieved July 12, 2019 from http://appsso.eurostat.ec.europa.eu/nui/show.do?dataset=met_pjanaggr3&lang=enRetrieved July 12, 2019 fromhttp://appsso.eurostat.ec.europa.eu/nui/show.do?dataset=met_pjanaggr3&lang=enSearch in Google Scholar
Gago, E.J., Roldan, J., Pacheco-Torres, R., Ordóñez, J. (2013): The city and urban heat islands: A review of strategies to mitigate adverse effects. Renew. Sust. Energ. Rev., 25: 749 – 758. DOI: 10.1016/j.rser.2013.05.057GagoE.J.RoldanJ.Pacheco-TorresR.OrdóñezJ.2013The city and urban heat islands: A review of strategies to mitigate adverse effects2574975810.1016/j.rser.2013.05.057Open DOISearch in Google Scholar
Genchi, C., Kramer, L. (2017). Subcutaneous dirofilariosis (Dirofilaria repens): an infection spreading throughout the old world. Parasit Vectors., 10(Suppl 2): 517. DOI: 10.1186/s13071-017-2434-8.GenchiC.KramerL.2017Subcutaneous dirofilariosis (Dirofilaria repens): an infection spreading throughout the old world10Suppl 251710.1186/s13071-017-2434-8Open DOISearch in Google Scholar
Genchi, C., Rinaldi, L., Mortarino, M., Genchi, M., Cringoli, G. (2009): Climate and Dirofilaria infection in Europe. Vet. Parasitol., 163(4): 286 – 292. DOI: 10.1016/j.vetpar.2009.03.026GenchiC.RinaldiL.MortarinoM.GenchiM.CringoliG.2009Climate and Dirofilaria infection in Europe163428629210.1016/j.vetpar.2009.03.026Open DOISearch in Google Scholar
Georgieva, D.A., Ivanov, I., Prelesov, P.N. (1992): Studies on the parasitic fauna in stray dogs in the Stara Zagora region. Bulg. J. Vet. Med., 2 (2 – 3): 121 – 124GeorgievaD.A.IvanovI.PrelesovP.N.1992Studies on the parasitic fauna in stray dogs in the Stara Zagora region22 – 3121124Search in Google Scholar
Georgieva, D., Kirkova, Z., Ivanov, A. (2001): A study on the incidence and diagnostics of dirofilariosis (heartworm disease) in carnivores. Bulg. J. Vet. Med., 4(4): 231–236GeorgievaD.KirkovaZ.IvanovA.2001A study on the incidence and diagnostics of dirofilariosis (heartworm disease) in carnivores44231236Search in Google Scholar
Harizanov, R.N., Jordanova, D.P., Bikov, I.S. (2014). Some aspects of the epidemiology, clinical manifestations, and diagnosis of human dirofilariasis caused by Dirofilaria repensParasitol Res. 113(4): 1571 – 1579. DOI: 10.1007/s00436-014-3802-3.HarizanovR.N.JordanovaD.P.BikovI.S.2014Some aspects of the epidemiology, clinical manifestations, and diagnosis of human dirofilariasis caused by Dirofilaria repens11341571157910.1007/s00436-014-3802-3Open DOISearch in Google Scholar
Iliev, P., Kirkova, Z., Ivanov, A., Kalkanov, I. (2017): Retrospective analysis on helminthic and protozoan infections in dogs and cats in Bulgaria. Bulg. J. Vet. Med., 20(Suppl 1): 389 – 393.IlievP.KirkovaZ.IvanovA.KalkanovI.2017Retrospective analysis on helminthic and protozoan infections in dogs and cats in Bulgaria20Suppl 1389393Search in Google Scholar
Ivanova, M., Gechev, Y. (2015): за проведено преброяване на безстопанствениживотнина територията на Столична община [Report of the Four Paws Foundation for the census of stray animals on the territory of Sofia Municipality]. Retrieved July 12, 2019 from https://www.sofia.bg/documents/20182/298118/2016_doklad_prebroyavane_kucheta_so.pdf (In Bulgarian)IvanovaM.GechevY.2015Retrieved July 12, 2019 fromhttps://www.sofia.bg/documents/20182/298118/2016_doklad_prebroyavane_kucheta_so.pdfIn BulgarianSearch in Google Scholar
Kirkova, Z., Ivanov, A., Georgieva, D. (2007): Dirofilariosis In Dogs And Wild Carnivores In Bulgaria. In: Genchi, C., Rinaldi, L., Cringoli, G. (Eds) Dirofilaria immitis and D. repens in dog and cat and human infections. Naples, Italy: Rolando Editore, pp. 204KirkovaZ.IvanovA.GeorgievaD.2007Dirofilariosis In Dogs And Wild Carnivores In BulgariaGenchiC.RinaldiL.CringoliG.Naples, ItalyRolando Editore204Search in Google Scholar
Kostadinov, M. (2007): Dirofilariosis among dogs in a small animal practice in the Plovdiv region, Bulgaria. In: Genchi, C., Rinaldi, L., Cringoli, G. (Eds) Dirofilaria immitis and D. repens in dog and cat and human infections. Naples, Italy: Rolando Editore, pp. 205KostadinovM.2007Dirofilariosis among dogs in a small animal practice in the Plovdiv region, BulgariaGenchiC.RinaldiL.CringoliG.Naples, ItalyRolando Editore205Search in Google Scholar
Kottek, M., Grieser, J., Beck, C., Rudolf, B., Rubel, F. (2006): World map of the Koppen-Geiger climate classification updated. Meteorol. Z., 15(3): 259 – 263. DOI: 10.1127/0941-2948/2006/0130KottekM.GrieserJ.BeckC.RudolfB.RubelF.2006World map of the Koppen-Geiger climate classification updated15325926310.1127/0941-2948/2006/0130Open DOISearch in Google Scholar
Kovachev, A.D. (2005): The green system of Sofia. Urbanistic aspects (In Bulgarian, English summary). Sofia, Bulgaria, Pensoft Publishing.KovachevA.D.2005Sofia, BulgariaPensoft PublishingSearch in Google Scholar
McCall, J.W., Genchi, C., Kramer, L.H., Guerrero, J., Venco, L. (2008): Heartworm disease in animals and humans. Adv. Parasitol., 66: 193 – 285. DOI: 10.1016/S0065-308X(08)00204-2McCallJ.W.GenchiC.KramerL.H.GuerreroJ.VencoL.2008Heartworm disease in animals and humans6619328510.1016/S0065-308X(08)00204-2Open DOISearch in Google Scholar
Mirchev, R., Trifonova, A., Panayotova-Pencheva, M.S. (2013): Dirofilaria immitis in foxes (Vulpes Vulpes, LINNAEUS, 1758) in different areas from Bulgaria. Science & Technologies, 3(5): 38 – 42 (In Bulgarian, English summary)MirchevR.TrifonovaA.Panayotova-PenchevaM.S.2013Dirofilaria immitis in foxes (Vulpes Vulpes, LINNAEUS, 1758) in different areas from Bulgaria353842In Bulgarian, English summarySearch in Google Scholar
Morchón, R., Carretón, E., González-Miguel, J., Mellado-Hernández, I. (2012): Heartworm Disease (Dirofilaria immitis) and Their Vectors in Europe – New Distribution Trends. Front. Physiol., 3: 196. DOI: 10.3389/fphys.2012.00196MorchónR.CarretónE.González-MiguelJ.Mellado-HernándezI.2012Heartworm Disease (Dirofilaria immitis) and Their Vectors in Europe – New Distribution Trends319610.3389/fphys.2012.00196337294822701433Open DOISearch in Google Scholar
Panayotova-Pencheva, M.S., Mirchev, R., Trifonova, A. (2016): Dirofilaria immitis infection in carnivores from Bulgaria: 2012 – 2013 update. Bulg. J. Vet. Med., 19(2): 153 – 162. DOI: 10.15547/ bjvm.918Panayotova-PenchevaM.S.MirchevR.TrifonovaA.2016Dirofilaria immitis infection in carnivores from Bulgaria: 2012 – 2013 update19215316210.15547/bjvm.918Open DOISearch in Google Scholar
Pantchev, N., Schnyder, M., Vrhovec, M.G., Schaper, R., Tsachev, I. (2015): Current Surveys of the Seroprevalence of Borrelia burgdorferi, Ehrlichia canis, Anaplasma phagocytophilum, Leishmania infantum, Babesia canis, Angiostrongylus vasorum and Dirofilaria immitis in Dogs in Bulgaria. Parasitol. Res., 114 Suppl 1: S117 – 130. DOI: 10.1007/s00436-015-4518-8PantchevN.SchnyderM.VrhovecM.G.SchaperR.TsachevI.2015Current Surveys of the Seroprevalence of Borrelia burgdorferi, Ehrlichia canis, Anaplasma phagocytophilum, Leishmania infantum, Babesia canis, Angiostrongylus vasorum and Dirofilaria immitis in Dogs in Bulgaria114 Suppl1S11713010.1007/s00436-015-4518-826152413Open DOISearch in Google Scholar
Penin, R. (2007): Prirodna (fizičeska) geografija na Balgarija. [Natural geography of Bulgaria]. Sofia, Bulgaria, Bulvest, 279 pp.PeninR.2007Sofia, Bulgaria, Bulvest279Search in Google Scholar
Radev, V., Lalkovski, N., Zhelyazkov, P., Kostova, T., Sabev, P., Nedelchev, N., Vasileva, R. (2016): Prevalence of gastrointestinal parasites and Dirofilaria spp. in stray dogs from some regions in Bulgaria. Bulg. J. Vet. Med., 19(1): 57 – 62. DOI: 10.15547/bjvm.872RadevV.LalkovskiN.ZhelyazkovP.KostovaT.SabevP.NedelchevN.VasilevaR.2016Prevalence of gastrointestinal parasites and Dirofilaria spp. in stray dogs from some regions in Bulgaria191576210.15547/bjvm.872Open DOISearch in Google Scholar
Simón, F., Siles-Lucas, M., Morchón, R., González-Miguel, J., Mellado, I., Carretón, E., Montoya-Alonso, J.A. (2012): Human and animal dirofilariasis: the emergence of a zoonotic mosaic. Clin. Microbiol. Rev., 25(3): 507 – 544. DOI: 10.1128/CMR.00012-12SimónF.Siles-LucasM.MorchónR.González-MiguelJ.MelladoI.CarretónE.Montoya-AlonsoJ.A.2012Human and animal dirofilariasis: the emergence of a zoonotic mosaic2535075440.1128/CMR.00012-12Open DOISearch in Google Scholar
Stogdale, L. (1984): Testing for Occult Heartworm Infection. Can. Vet. J., 25(4): 171 – 174.StogdaleL.1984Testing for Occult Heartworm Infection254171174Search in Google Scholar
Velev, V., Vutova, K., Pelov, T., Tsachev, I. (2019). Human dirofilariasis in Bulgaria between 2009 and 2018. helminthologia 56(3): 247 – 251. DOI: 10.2478/helm-2019-0016VelevV.VutovaK.PelovT.TsachevI.2019Human dirofilariasis in Bulgaria between 2009 and 201856324725110.2478/helm-2019-0016679958031662696Open DOISearch in Google Scholar
Yang, L., Qian, F., Song, D., Zhenga, K. (2016): Research on Urban Heat-island Effect. Procedia Eng., 169: 11 – 18. DOI: 10.1016/j. proeng.2016.10.002YangL.QianF.SongD.ZhengaK.2016Research on Urban Heat-island Effect169111810.1016/j.proeng.2016.10.002Open DOISearch in Google Scholar