@article{DAN_1969_186_3_a10,
     author = {I. I. Artobolevsky and V. S. Loshchinin},
     title = {An iteration procedure for calculating the characteristic criterion of a periodic limiting motion of a machine unit},
     journal = {Doklady Akademii Nauk},
     pages = {529--532},
     publisher = {mathdoc},
     volume = {186},
     number = {3},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1969_186_3_a10/}
}