000			00374nmm a2200133Ia 4500
008			230125s9999||||xx |||||||||||||||||und||
020			_a9780817684068
100			_aAlexander A. Roytvarf
245		0	_aThinking in Problems
250			_a2013
260			_bBirkhäuser Boston _c2013
650			_aMathematics and Statistics
856			_uhttps://doi.org/10.1007/978-0-8176-8406-8
999			_c4233 _d4233