[[1] Nitrogen-propane protective atmospheres for annealing and hardening operations in continuous furnaces [online]. Air Products and Chemicals, Inc., 2015. 1–9. [cited 30.2.2016]. Available on: <http://www.airproducts.com/~/media/downloads/article/N/en-nitrogen-propane-protective-atmospheres.pdf>.]Search in Google Scholar
[[2] Linde Gas. Furnace Atmospheres No. 2. Neutral Hardening and Annealing [online]. Special Edition. [cited 30.2.2016]. Available on: <http://www.techgaz.ru/userFiles/file/FA.2%20Hardening%20and%20Annealing.pdf>.]Search in Google Scholar
[[3] Herring, H.D. (2010): Annealing of Wire Products: Atmospheres [online]. Winter 2010/Wire Forming Technology International. [cited 30.5.2017]. Available on: <http://www.heat-treat-doctor.com/documents/annealing%20of%20wire%20products.pdf>.]Search in Google Scholar
[[4] Buss, D.: Optimierte Wärmebehandlung in der tahlverarbeitung. Messer Group GmbH. [online]. [cited 30.5.2017]. Available on: <http://old.messergroup.com/de/Info_Download/Fachbroschueren/Metallurgie/Haerten-mit-Stickstoff.pdf >.]Search in Google Scholar
[[5] Herring, H.D. (2009): Considerations in Heat Treatment Part One: Furnace Atmospheres. [online]. IndustrialHeating.com-october 2009. str. 45–48. [cited 30.5.2017]. Available on: http://www.heat-treat-doctor.com/documents/Considerations%20in%20HT1.pdf>.]Search in Google Scholar
[[6] Rodič, A. Določevanje globine razogljičenja pri različnih vrstah jekel [online]. Železarna Ravne. pp. 105–115. [cited 30. 5. 2017]. Available on: <file:///C:/Documents%20and%20Settings/Uporabnik/My%20Documents/Downloads/Doloevanje_URN-NBN-SI-DOC-P7AWMU45.pdf>.]Search in Google Scholar
[[7] Grešovnik, F., Grešovnik, M.M. (2002): Vpliv segrevanja in razogljičenja hadfieldovega jekla na spreminjanje fazne sestave. Materiali in tehnologije 36, 3/4, pp. 143–146.]Search in Google Scholar
[[8] Torkar, M. (2004). Varovalni premaz za zmanjšanje škajanja in razogljičenja površine jekla med ogrevanjem pred vročo predelavo. Patent št. 21562: št. prijave P-200400257.]Search in Google Scholar
[[9] Standard ISO 9001:2015. Sistem vodenja kakovosti v avtomobilski industriji [online]. [cited 30. 5. 2017]. Available on: < http://www.siq.si/ocenjevanje_sistemov_vodenja/storitve/sistemi_vodenja_kakovosti_v_avtomobilski_industriji/index.html>.]Search in Google Scholar
[[10] Knez, F. (2017): Distančni vijak. Tehnološki list toplotne obdelave. Kovikor, d. o. o., Šmartno pri Litiji.]Search in Google Scholar
[[11] Leban, M.B. (2015): Poročilo o analizi toplotno obdelanih vijakov, št. P0339/15-440-1. Zavod za gradbeništvo Ljubljana.]Search in Google Scholar
