000 00327 a2200109 4500
082 _a621.3815
_bIn8aE
245 1 _aSUPPLEMENT TO THEORETICAL METHODS OF NONLINEAR OSCELLATIONS WITH PROBLEMS OF PHYSICS AND TECHNOLOGY
260 _aKeene
_bAcademy Of Sciences
_c1963
300 _a2 v.
964 _gCIRC
997 _a26929 v. 3 s C
999 _c452197
_d452197