000 00282nam a2200109Ia 4500
008 170707s9999 xx 000 0 und d
050 _a512.21 C426
100 _a"Chester, Clive"
245 0 _aTechniques in partial differential equations
260 _c1971
942 _2lcc
_cBK
_kCirc.
999 _c13949
_d13949