Vraník, P. (2010) „DERIVATION OF EQUATIONS OF MOTION FOR THE START OF AN ELECTRIC HOIST BY MEANS OF LAGRANGE EQUATIONS OF THE SECOND KIND", Perner’s Contacts, 5(4), s. 280–285. Dostupné z: https://pernerscontacts.upce.cz/index.php/perner/article/view/1070 (Viděno: 25 listopad 2024).