SZCZEPIŃSKI, W. On The Movement of Granular Materials in Bins Part II: Three-Dimensional Problems. Engineering Transactions, [S. l.], v. 51, n. 4, p. 433–444, 2003. DOI: 10.24423/engtrans.481.2003. Disponível em: https://et.ippt.pan.pl/index.php/et/article/view/481. Acesso em: 5 dec. 2025.