Chobanov, Georgi, and Ivan Chobanov. “Newtonian and Eulerian Dynamical Axioms. V. Prehistory of Mechanical Constraints”. Ann. Sofia Univ. Fac. Math. and Inf. 86, no. 2 (December 12, 1994): 73–98. Accessed November 22, 2024. https://annual.uni-sofia.bg/index.php/fmi/article/view/507.