Clauwens, F. J. B. J. The K-groups of rings part I, construction of the logarithmic invariant - Nijmegen : Catholic University, Department of Mathematics 1985 - 39p. ; 21cm. - Report 8529 . Includes bibliographical references Subjects--Topical Terms: Logarithmic functions Rings (Algebra), Invariants LC Class. No.: MATH QA3.R46