000			00485nam a2200157Ia 4500
008			211115s9999 xx 000 0 und d
041			_aeng
082			_aB333 _bJ9F.1-2
100			_aForsyth, Andrew Russell.
245		0	_aTheory of Differential Equations Part 1 :Exact Equations and PFaff`s Problem /
250			_a1st ed /
260			_aNew York : _bDover Publications, Inc , _c1994
300			_axiii, 344p ;
650			_aMathematics <Differential Equations>
942			_cTB
999			_c25659 _d25659