@article{DAN_1963_148_4_a4,
     author = {M. I. Grabar'},
     title = {On the equation $\frac{d\varphi}{dt}=f-\alpha$ in phase space},
     journal = {Doklady Akademii Nauk},
     pages = {757--760},
     publisher = {mathdoc},
     volume = {148},
     number = {4},
     year = {1963},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1963_148_4_a4/}
}