[Arbabi A., 2011. Cluster-based method for understanding the climactic diversity of Iran. African Journal of AgriculturalResearch 6(31): 6525-6529.10.5897/AJAR11.1321]Search in Google Scholar
[Bednorz E., 2008. Synoptic reasons for heavy snowfalls in the Polish-German lowlands. Theoretical and Applied Climatology 92: 133-140.10.1007/s00704-007-0322-4]Search in Google Scholar
[Bielec-Bąkowska Z., 2010. Występowanie gradu w Polsce w świetle cyrkulacji atmosfery w latach 1966-2006. Woda wbadaniach geograficznych: 359-374.]Search in Google Scholar
[Changnon S.A., Changnon D., Hilberg S.D., 2009. Hailstormsacross the nation. An atlas about hail and its damages. Illinois State Water Survey.]Search in Google Scholar
[Groenemeijer P.H., van Delden A., 2006. Sounding-derived parameters associated with large hail and tornadoes in the Netherlands. Atmospheric Research 83: 473-487.10.1016/j.atmosres.2005.08.006]Search in Google Scholar
[Hohl R., Schweingruber F.H., Schiesser H.-H., 2002. Reconstruction of severe hailstorm occurrence with tree rings: a case study in central Switzerland. Tree-ring Research 58(1/2): 11-22.]Search in Google Scholar
[Kalnay E., Kanamitsu M., Kistler R., Collins W., Deaven D., Gandin L., Iredell M., Saha S., White G., Woollen J., Zhu Y., Chelliah M., Ebisuzaki W., Higgins W., Janowiak J., Mo K.C., Ropelewski C., Wang J., Leetmaa L., Reynolds R., Jenne R., Joseph D., 1996. The NMC/NCAR 40-Year Reanalysis Project. Bulletin of American Meteorological Society 77: 437-471.10.1175/1520-0477(1996)077<0437:TNYRP>2.0.CO;2]Search in Google Scholar
[Kapsch M.-L., Kunz M., Vitolo R., Economou T., 2012. Long-term trends of hail-related weather types in an ensemble of regional climate models using a Baessian approach. Journal of Geophysical Research 117. DOI: 10.1029/2011JD017185.10.1029/2011JD017185]Search in Google Scholar
[Kolendowicz L., 2006. The influence of the synoptic situations on the occurrence of days with thunderstorms during a year in the territory of Poland. International Journalof Climatology 26: 1803-1820.10.1002/joc.1348]Search in Google Scholar
[Koźmiński Cz., 1964. Geograficzne rozmieszczenie większych burz gradowych zanotowanych na obszarze Polski w latach 1946-1956. Przegląd Geograficzny 36(1): 87-102.]Search in Google Scholar
[Kunz M., Sander J., Kottmeier Ch., 2009. Recent trends of thunderstorm and hailstorm frequency and their relation to atmospheric characteristics in southwest Germany. InternationalJournal of Climatology 29: 2283-2297. 10.1002/joc.1865]Search in Google Scholar
[Leigh R., 2007. Hail storm-one of the costliest natural hazards. Coastal Cities Natural Disasters Conference, Sydney, 20-21 February.]Search in Google Scholar
[Modarres R., 2006. Regional precipitation climates of Iran. Journal of Hydrology 45(1): 13-27.]Search in Google Scholar
[Niall S., Walsh K., 2005. The impact of climate change on hailstorms in southeastern Australia. International Journal of Climatology 25: 1933-1952.10.1002/joc.1233]Search in Google Scholar
[Piani F., Crisci A., De Chiara G., Maracchi G., Meneguzzo F., 2005. Recent trends and climatic perspective of hailstorms frequency and intensity in Tuscany and Central Italy. Natural Hazards and Earth System Sciences 5: 217-224.10.5194/nhess-5-217-2005]Search in Google Scholar
[Simeonov P., Georgiev C.G., 2003. Severe wind/hail storms over Bulgaria in 1999-2001 period: synoptic- and meso- scale factors for generation. Atmospheric Research 67: 629-643.10.1016/S0169-8095(03)00077-2]Search in Google Scholar
[Sioutas M.V., Flocas H.A., 2003. Hailstorms in Northern Greece: synoptic patterns and thermodynamic environment. Theoretical and Applied Climatology 75: 189-202.10.1007/s00704-003-0734-8]Search in Google Scholar
[Sioutas M.V., Meaden T., Webb J.D.C., 2009. Hail frequency and intensity in northern Greece. Atmospheric Research 93: 526-533.10.1016/j.atmosres.2008.09.023]Search in Google Scholar
[Suwała K., 2012. The influence of atmospheric circulation on the occurrence of hail in the North German Lowlands. Theoretical and Applied Climatology. DOI: 10.1007/s00704-012-0735-6.10.1007/s00704-012-0735-6]Search in Google Scholar
[Svabik O., 1989. Review of meteorological aspects on hail defense activities in Austria. Theoretical and Applied Climatology 40: 247-254.10.1007/BF00865975]Search in Google Scholar
[Tuovinen J.-P., Punkka A.-J., Rauhala J., Hohti H., Schultz D.M., 2009. Climatology of Severe Hail in Finland: 1930-2006. Monthly Weather Review 137(7): 2238-2249.10.1175/2008MWR2707.1]Search in Google Scholar
[Zhang C., Zhang Q., Wang Y., 2008. Climatology of hail in China: 1961-2005. Journal of Applied Meteorology and Climatology 47: 795-804.10.1175/2007JAMC1603.1]Search in Google Scholar
[Zienkiewicz W., Michna E., 1955. Częstotliwość występowania gradów w województwie lubelskim w zależności od warunków fizjograficznych. Annales UMCS Sectio B, 10 (5): 223-300.]Search in Google Scholar