%0 Journal Article %A Choo, Koo-Guan %T Grothendieck groups of twisted free associative algebras %J Glasgow mathematical journal %D 1977 %P 193-196 %V 18 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500003268/ %R 10.1017/S0017089500003268 %F 10_1017_S0017089500003268