000 00285nam a2200121Ia 4500
008 190711s9999 xx 000 0 und d
082 _a517.6 L668
100 _aLEVY.H
245 0 _aFINITE DIFFERENCE EQUATIONS
260 _aLONDON
_bPitman
_c1959
300 _a22X14
942 _cBK
_2DDC
999 _c11452
_d11452