00556nam a2200181Ia 4500082001900000100002500019245006800044260003500112300002000147490004600167500000500213690000600218700000500224952010100229964001700330921001000347999001700357  a515.1bEn57.FC  aEngelsman, Steven B.  aFamilies of curves and the origins of partial differentiationb  aAmsterdambNorth-Hollandc1984  aix, 238p. Bibl.  aNorth-Holland Mathematics studiesv v. 93  a  a   a  00104070aISIbISId1998-09-16l0o515.1 En57.FCpDP20433r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a11471  c11471d11471