000 00308nam a2200145Ia 4500
008 190201s9999 xx 000 0 und d
082 _a536
082 _b7 S18D
100 _a"sychev, V.V."
245 4 _aThe Differential Equatio
260 _aMoscow
260 _bM.P.
260 _c1983
300 _a240
999 _c22792
_d22792