TY - BOOK AU - Van Den Essen,Arno TI - Locally nilpotent derivations and their applications III AV - MATH QA3.R46 No.9330 PY - 1993/// CY - Nijmegen PB - Catholic University, Department of Mathematics KW - Groups, nilpotent KW - Algorithms KW - Polynomials N1 - Includes bibliographical references ER -