000 004040000a22001330004500
008 140223b1970 xxu||||| |||| 00| 0 eng d
041 _aENG
080 _aB33 L0
082 _aB33 L0
100 _aELSGOLTS (L)
245 _aDifferential equations and the calculus of variations, tr fr Russian by George Yankovsky
260 _aMoscow
_bMir. Pub.
_c1970
650 _aDIFFERENTIAL AND INTEGRAL EQUATIONS
999 _c253611
_d253611