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020 _a9789814460828
037 _aEBOOK
040 _aCRL
_beng
_cCRL
041 _aeng
_2eng
084 _qCRL
100 _aOvsyannikov L V Et Al
_9947389
245 0 _aLectures on the Theory of Group Properties of Differential Equations
260 _bWorld Scientific
260 _bWSPC/HEP
260 _c2013
650 _aMathematics
_9947390
856 _uhttps://www.worldscientific.com/worldscibooks/10.1142/8762#t=toc
942 _cEBOOK
999 _c1538183
_d1538183