by Campbell, Colin M., Robertson, Edmund F., Ruškuc, Nikola, Thomas, Richard M.
Published in Theoretical computer science (01.01.2001)

by Crvenkovic, Sinisa, Ruškuc, Nikola
Published in Algebra universalis (01.06.1993)

by Campbell, Colin M., Robertson, Edmund F., Ruškuc, Nikola, Thomas, Richard M.
Published in Journal of pure and applied algebra (03.06.1994)

by Ruskuc, Nikola
Year of Publication 1995