@article{MZM_1971_10_2_a0,
     author = {V. V. Grushin},
     title = {A differential equation without a solution},
     journal = {Matemati\v{c}eskie zametki},
     pages = {125--128},
     publisher = {mathdoc},
     volume = {10},
     number = {2},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1971_10_2_a0/}
}