@article{DAN_1961_137_3_a18,
     author = {V. M. Grigorevskii},
     title = {Rapid variations of the rotation period of the second {Soviet} artificial earth satellite with respect to the transverse axis},
     journal = {Doklady Akademii Nauk},
     pages = {572--575},
     publisher = {mathdoc},
     volume = {137},
     number = {3},
     year = {1961},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1961_137_3_a18/}
}