000			00320nam a2200121Ia 4500
008			230413s9999||||xx |||||||||||||| ||und||
082			_a35PR
100			_aProtter, Murray H.; Weinberger, Hans F.
245		0	_aMaximum principles in differential equations.
260			_bSpringer-Verlag
260			_c1984
942			_cBooks
999			_c1881 _d1881