1.
Trąmpczyński W, Szyba D. Brief Notes: Kinematically Admissible Solutions for the Incipient Stage of Earth Moving Processes in the Cases of Various Pushing Wall Forms. Eng. Trans. 1991;39(1):123-134. Accessed January 17, 2026. http://et.ippt.gov.pl/index.php/et/article/view/1618