@article{ZVMMF_1969_9_3_a31,
     author = {I. G. Nidekker},
     title = {Differentialgleichungen: {L.~Collatz.} {B.} {G.~Teubner,} {Stuttgart,} 1967},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {734},
     publisher = {mathdoc},
     volume = {9},
     number = {3},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1969_9_3_a31/}
}