Mihael Bruncko, Ivan Anzel, and Albert C. Kneissl (2011). Microstructural Changes during Vacuum Carburizing of Steels. Practical Metallography: Vol. 48, No. 8, pp. 398-407. doi: 10.3139/147.110137 © Carl Hanser Verlag GmbH & Co. KG ISSN 0032-678X