000 00483nam a22001697a 4500
005 20151217143904.0
008 100419t xxu||||| |||| 00| 0 eng d
020 _a0124547508
080 _a517.97
_bLOG
100 _aLogan, John David
_98670
245 _aInvariant variational principles
260 _aNew York
_bAcademic press
_c1977
300 _a172p.
490 _aMathematics in science and engineering
_v138
653 _aCalculus variations
_aInvariants
942 _cBK
999 _c143026
_d143026