Hrabovský, L. (2011) „CROSS-SECTIONAL AREA OF THE BELT CONVEYOR WITH A THREE-IDLER SET", Perner’s Contacts, 6(2), s. 62–67. Dostupné z: https://pernerscontacts.upce.cz/index.php/perner/article/view/828 (Viděno: 22 listopad 2024).