00319nam a2200121Ia 450000500170000000800410001702000150005805000170007310000180009024500420010826000230015065000240017320251229182717.0251229s9999    xx            000 0 und d  a0199140979  aQA 805 .S23   aSadler, A. J. 0aUnderstanding mechanics.cA. J Sadler  aOxfordb OUPc1983  aMechanics, Analytic