Nowicki, Andrzej. Polynomial derivations and their rings of constants/ Andrzej Nowicki. - Torún: Uniwersytet Mikolaja Kopernika, 1994. - iii, 170 p. ; 24 cm. - Rozprawy (Uniwersytet Mikolaja Kopernika w Toruniu) . Ref. bibliogr. : p. 158-166. Index. ISBN: 832310543X Subjects--Topical Terms: Polynomes. Dewey Class. No.: 512 / N948p