[1] Berge C.:
Sur une Theorie Ensembliste du Jeux Alternatifs. J. Math. Pures Appl. 32, 1953, 129-184.
MR 0065891
[2] Kalmár L.: Zur Theorie der Abstrakten Spiele. Acta Sci. Math. Univ. Szeged. 4, 1928, 65-85.
[3] Pultr A., Morris F. L.:
Prohibiting Repetitions Makes Playing Games Sustantially Harder. Int. J. Game Theory, Vol. 13, Issue 1, page 27-40.
MR 0741584