000 00276nam a2200109Ia 4500
008 250217s9999 xx 000 0 und d
022 _a220396
082 _a515.3505
_bJOU
245 0 _aJournal of Differential Equations
260 _bAccadamic press
_aNew York
942 _cPRBP
999 _c188293
_d188292