000 00291nam#a2200133ua#4500
001 GOACATREC21563
900 0 0 _a19990831
901 0 0 _aENG
903 0 0 _a21771
245 0 0 _aEquations of the Mixed Type
100 0 0 _aBitsadze, A.
902 0 0 _a517.383
260 0 0 _aOxford
_bPergamon Press
_c1964
999 _c21588
_d21588