@article{DAN_1961_139_5_a12,
     author = {I. I. Artobolevsky},
     title = {Linear connecting rod envelopes with a sliding pair},
     journal = {Doklady Akademii Nauk},
     pages = {1077--1080},
     publisher = {mathdoc},
     volume = {139},
     number = {5},
     year = {1961},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1961_139_5_a12/}
}