%0 Journal Article
%A Aimo Tietäväinen
%T On the nonexistence of perfect 4-Hamming-error-correcting codes
%J Annales Fennici Mathematici
%D 1971
%V 471-500
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1971.485/
%R 10.5186/aasfm.1971.485
%G en
%F AFM_1971_471-500_a15