Reviewer's Report (with its carbon-copy) by S.Lauesen on M.Gourgand's, M.Schneider's and A.Tangui's paper. Date: 15.02.1980 Original document language: English Authors: S. Lauesen Organizations: IFIP Persons: M. Schneider, M. Gourgand, A. Tangui Addressee: Andrei Petrovich Ershov