by Denecke, K., Wismath, S. L.
Published in International Journal of Mathematics and Mathematical Sciences (2008)

by Cowan, D., Wismath, S.L.
Published in Semigroup forum (01.09.1997)

by Schweigert, D., Wismath, S. L
Published in Algebra universalis (01.01.1997)

by Denecke, K., Wismath, S.L.
Published in Algebra universalis (01.08.2004)

by Denecke, K., Wismath, S. L.
Published in Algebra universalis (01.01.2003)

by Denecke, K., Koppitz, J., Wismath, S. L.
Published in Algebra universalis (01.01.2002)

by Denecke, K., Sarasit, N., Wismath, S. L.
Published in Demonstratio mathematica (01.03.2013)

by Wismath, S. L.
Published in Algebra universalis (01.12.1995)

by Wismath, S. L.
Published in Algebra universalis (01.03.1995)

by Penner, P., Wismath, S. L.
Published in Demonstratio mathematica (01.07.2010)

by Cowan, D., Wismath, S.L.
Published in Semigroup forum (01.01.1999)

by Penner, P., Wismath, S. L.
Published in Demonstratio mathematica (01.09.2010)

by Penner, P., Wismath, S.L., Padmanabhan, R.
Published in Algebra universalis (01.01.2000)

by Denecke, K., Wismath, S. L.
Published in International journal of mathematics and mathematical sciences (01.01.2008)

by Denecke, K., Wismath, S. L.
Published in Semigroup forum (01.12.1994)

by Chajda, I., Cheng, W., Wismath, S. L.
Published in Czechoslovak mathematical journal (01.09.2008)

by Wang, Q., Wismath, S.L.
Published in Semigroup forum (01.04.2007)

by Christie, A., Wang, Q., Wismath, S. L.
Published in Algebra universalis (01.02.2007)

by Wismath, S. L.
Published in Southeast Asian bulletin of mathematics (01.07.2001)

by Wismath, S. L.
Published in Southeast Asian bulletin of mathematics (01.03.2000)