00273nam a2200109Ia 4500008004100000041000800041082001600049100002900065245004900094260001300143365000700156230303s9999    xx            000 0 und d  aeng  a004.151 LAN  aLANGTANGEN (Hans Petter)  aComputational Portial Differential Equations  bSPRINGER  cRS