000 00288nam a2200097Ia 4500
008 220816s9999||||xx |||||||||||||| ||und||
020 _a354053363X | 038753363X
245 0 _aPartial differential equations IV :
260 _aBerlin :
_bSpringer-Verlag,
_c1993
300 _a241 p. :
_bill. ;
_c25 cm.
999 _c2700
_d2700