000 003880000a22001450004500
008 151203t1980 xxu||||| |||| 00| 0 eng d
020 _a90-277-1060-0
041 _aeng
080 _a517.9
_bR4
942 _cBK
100 _aRektorys, Karel
245 _aVariational methods in mathematics science and engineering
250 _a2d ed.
260 _aBooston
_bD.Reidel Publications
_c1980
999 _c139339
_d139339