Set existence principles of Shoenfield, Ackermann, and Powell W. Reinhardt (1974) Fundamenta Mathematicae
Set-like equivalence and inner and outer cuts Josef Mlček (1987) Commentationes Mathematicae Universitatis Carolinae
Shiftings of the horizon Antonín Sochor, Petr Vopěnka (1983) Commentationes Mathematicae Universitatis Carolinae
Shortening of the universal class in the alternative set theory [Abstract of thesis] Eva Zmeškalová (1988) Commentationes Mathematicae Universitatis Carolinae
Some automorphisms of natural numbers in the alternative set theory Josef Mlček (1985) Commentationes Mathematicae Universitatis Carolinae
Some connections between measure, indiscernibility and representation of cuts Martin Kalina, Pavol Zlatoš (1990) Commentationes Mathematicae Universitatis Carolinae
Some generalizations to two systems of set theory based on combinatory logic. M.W. Bunder (1987) Archiv für mathematische Logik und Grundlagenforschung
Some remarks on bicommutability M. Artigue, E. Isambert, M. Perrin, A. Zalc (1978) Fundamenta Mathematicae
Some remarks on revealness Athanossios Tzouvaras (1987) Commentationes Mathematicae Universitatis Carolinae
Some remarks to the axiom of prolongation Karel Čuda (1986) Acta Universitatis Carolinae. Mathematica et Physica
Sur les arbres logiques de M. Krasner Alan J. Gold (1975) Annales scientifiques de l'Université de Clermont. Mathématiques