00447nam a2200133 a 450000500170000002000150001708200160003210000180004824500900006626000540015630000240021049000580023470000210029220251203111211.0  a082182533X  a515.64bAND  aAnderson, Ian  aThe Inverse Problem of the Calculus of Variations for Ordinary Differential Equations  aRhode IslandbAmerican Mathematical Societyc1992  avi,110p.c25cm.cPB  aMemories of the American Mathematical Society No. 473  aThompson, Gerard