000 00305nam a2200121 4500
008 160616s 000 0
245 _aContributions to differential equations
700 _aMaryland University
500 _aB33 K32.1 K32.2
942 _cBK
_2BK4356
080 _a517.9 MAR
080 _a517.9 MAR
999 _c4356
_d4356