000 00299nam a2200121Ia 4500
008 221117b |||||||| |||| 00| 0 eng d
040 _aBGL
_cBGL
082 _a515.35 P9 MAT
100 _aJohn, Fritz
245 0 _aPartial Differentail Equations
260 _aNew Delhi
_bSpringer
_c2009
942 _cGB
999 _c21600
_d21600