Lallement G. Semigroups and combinatorial applications

New York: Wiley-Interscience, 1979. — 393 p.Elementary definitions and examples
Green's relations
Simple semigroups, Rees-Suschkewitsch theorem
The prime decomposition theorem for finite monoids
Free monoids, languages, and codes
Automata, rational languages, and their syntactic monoids
Star problems for rational languages
Rational prefix codes
Algebraic languages
The Burnside problems and related questions
Rearrangements, factorizations, and MacMahon's master theoremSymbols