@article{DAN_1961_139_4_a17,
     author = {I. I. Artobolevsky},
     title = {On the theory of four-bar chains with two sliding pairs},
     journal = {Doklady Akademii Nauk},
     pages = {838--840},
     publisher = {mathdoc},
     volume = {139},
     number = {4},
     year = {1961},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1961_139_4_a17/}
}