%0 Journal Article
%A Auinger, Karl
%T Bifree objects in e-varieties of strict orthodox semigroups and the lattice of strict orthodox *-semigroup varieties
%J Glasgow mathematical journal
%D 1993
%P 25-37
%V 35
%N 1
%U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500009538/
%R 10.1017/S0017089500009538
%F 10_1017_S0017089500009538