00897nam0-22003011i-450-990000988260403321000098826FED01000098826(Aleph)000098826FED0100009882620000920d1961----km-y0itay50------baengDifferential EquationsL.E. El'sgol'tsNew YorkGordon and BreachHindustan Publishing1961Delhivi, 359 p.22 cmRussian Monographs and Texts on Advanced Mathematics and Physics4Equazioni differenziali e integroDifferenziali517.37Elsgolts,Lev Ernestovic346159ITUNINARICAUNIMARCBK99000098826040332115-0284660FI1FI1Differential equations317829UNINAING01