Mincheva, Desislava, Plamen Petrov, and Diyan M. Dimitrov. “Elastic Constants of Iron Base Sintered Alloys After Chemical Heat Treatment”. ANNUAL JOURNAL OF TECHNICAL UNIVERSITY OF VARNA, BULGARIA 8, no. 1 (June 28, 2024): 37–44. Accessed October 2, 2025. https://aj.tu-varna.bg/index.php/ajtuv/article/view/303.