000			00376nmm a2200133Ia 4500
008			230125s9999||||xx |||||||||||||||||und||
020			_a9783662026243
100			_aMichael Struwe
245		0	_aVariational Methods
250			_a1990
260			_bSpringer Berlin Heidelberg _c1990
650			_aMathematics and Statistics
856			_uhttps://doi.org/10.1007/978-3-662-02624-3
999			_c10013 _d10013