@article{DAN_1967_173_5_a7,
     author = {I. I. Artobolevsky and V. A. Zinov'ev and N. V. Umnov},
     title = {Equations of motion for a mechanism with varying velocity ratio},
     journal = {Doklady Akademii Nauk},
     pages = {1017--1020},
     publisher = {mathdoc},
     volume = {173},
     number = {5},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1967_173_5_a7/}
}