@Book{Howie95, author = "John M. Howie", title = "Fundamentals of Semigroup Theory", publisher = "Oxford University Press", year = "1995", volume = "12", series = "London Mathematical Society Monographs New Series" }

@Book{Lallement79, author = "G{\accent19 e}rard Lallement", title = "Semigroups and Combinatorial Applications", publisher = "Wiley, New York", year = "1979" }

@Article{LPRR1, author = "Linton, S. A. and Pfeiffer, G. and Robertson, E. F. and Ru{\v s}kuc, N.", title = "Groups and actions in transformation semigroups", year = "1998", journal = "Math. Z.", volume = "228", pages = "435--450" }

@Unpublished{LPRR2, author = "Linton, S. A. and Pfeiffer, G. and Robertson, E. F. and Ru{\v s}kuc, N.", title = "Computing transformation semigroups", note = "submitted" }Index

Version 2.4 (May 1998)