00393nam a2200121Ia 4500008004100000082001300041100002100054245006300075650003000138942000700168952008300175999001300258240817s9999    xx            000 0 und d  a517.6 F6  aWhittaker , T E. 0aCalculus of obervaitons-A treatise on numerocal mathmatics  a Mathematics Engineering.  cBK  00104070aTCLbTCLd2024-08-21l0o517.6 F6p977r2024-08-21w2024-08-21yBK  c891d891