Kucharski, S. “The Use of Transitional Elements for Stress Analysis of Structures With a Technological Surface Layer by the Method of Finite Elements”.
Engineering Transactions 42, no. 1-2 (July 1, 1994): 19–31. Accessed August 17, 2025.
https://et.ippt.pan.pl/index.php/et/article/view/1523.