000 00270nam a2200121Ia 4500
008 230401s2012 xx 000 0 eng d
082 _a515.353
100 _aRAO S
245 0 _aPARTIAL DIFFERENTIAL EQUATIONS
260 _bPHI
_c2012
300 _a488
942 _2ddc
_cBTECH
999 _c422
_d422