%0 Journal Article %A PARSONS, MARK JAMES %T EXPLICIT CONSTRUCTION OF COMPANION BASES %J Glasgow mathematical journal %D 2016 %P 357-384 %V 58 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089515000233/ %R 10.1017/S0017089515000233 %F 10_1017_S0017089515000233