1. Tool Steel and Specialty Alloy Selector;Crucible Materials Service Centers,1993
2. ASM's 2nd International Conference Ion Nitriding/Carburizing. Cincinnati, Ohio, USA, September, 1989;Inal,1990
3. Conference on Heat Treatment '73;Jack,1973
4. ASM's 2nd International Conference on Ion Nitriding/Carburizing. Cincinnati, Ohio, USA, September 1989;Spalvis,1990
5. METHOD OF MEASURING NITRIDED CASE DEPTH FOR IRON AND STEEL