000 00323nam a2200121Ia 4500
008 210311s9999 xx 000 0 und d
040 _crty
100 _aRubinstein,IsaaK and Rubinstein,Lev
245 0 _aPartial differential equations-in classical mathematical physics
260 _aUSA
300 _a1993
942 _cTU
999 _c269615
_d269615