000 00297nam a2200121Ia 4500
008 220201s1999 xx 000 0 eng d
082 _a621
_bMOT
100 _aMotreanu, D
245 0 _aTangency flowinvariance for diff. equations
260 _aDelhi
_bDekker
_c1999
300 _a479
942 _2ddc
999 _c36630
_d36630