%0 Journal Article %A Veikko Ennola %T On a conjecture of H. J. Godwin on cubic units %J Annales Fennici Mathematici %D 1987 %P 319-328 %V 12 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1987.1209/ %R 10.5186/aasfm.1987.1209 %G en %F AFM_1987_12_2_a15