000 00367nam a2200133Ia 4500
008 190601s9999 xx 000 0 und d
082 _a515.7
_bBEC
100 _aBecker, Martin
245 4 _aThe Principles and applications of variational methods
260 _aCambridge
_bM.I.T. Press
_c1964
300 _avii, 120 p.
650 _aFunctional analysis
942 _cS
999 _c121652
_d121651