00329nam a2200097Ia 4500008004100000020000600041100002700047245003100074999001900105952010700124211105s9999    xx            000 0 und d  a"  a Curran, Greg, 975737 0aHomework helpers. Physics   c606798d606797  00104070aERMELLbERMELLd2021-11-08g195.00l0oST 530 CURRp33228024398081r2021-11-08w2021-11-08