00271nam a2200109Ia 4500008004100000041001200041082001100053100001800064245006700082260000600149650000600155221030s9999    xx            000 0 und d  aEnglish  a105.23  aG. D. De Vahl 0aNumerical Methods in Engineering and Sciencecby G. D. De Vahl  c0  aB