OKRAJNI, Jerzy, and Krzysztof WACŁAWIAK. “The Impact of Temperature Oscillations and Heat Transfer Conditions in Thick-Walled Elbows and Tubes on the Local Stress-Strain Behaviour During the Fast Start-Up of Power Boilers”. Engineering Transactions 67, no. 4 (December 6, 2019): 579–591. Accessed June 10, 2025. https://et3.ippt.pan.pl/index.php/et/article/view/896.