1. On fixed points of the composite of commuting functions;Baxter,1964
2. On permutations induced by commuting functions, and an imbedding question;Baxter;Math. Scand.,1963
3. On functions that commute with full functions;Baxter;Nieuw Arch. Wisk. (3),1964
4. Generation of a class of permutations associated with commuting functions;Boyce;Math. Algorithms,1967
5. Commuting functions with no common fixed point;Boyce;Trans. Amer. Math. Soc.,1969