Poznan Studies volumes 31-40:

Vol. 40. The Heritage of Kazimierz Ajdukiewicz (1995)
Vol. 39. Probability in Theory-Building (1994)
Vol. 38. Idealization VI: Idealization in Economics (1994)
Vol. 37. The Social Philosophy of Agnes Heller (1994)
Vol. 36. Marxism and Communism (1994)
Vol. 35. Empirical Logic and Public Debate (1993)
Vol. 34. Idealization V: The Dynamics of Idealizations (1994)
Vol. 33. Social System, Rationality, and Revolution (1993)
Vol. 32. From One-Party-System to Democracy (1993)
Vol. 31. Creativity and Consciousness (1993)