[3] | Contents. |
3-8 | On decomposition of projections of finite order. Krzempek, Jerzy |
9-15 | On midpoints in lattices. Beran, Ladislav |
17-30 | Groupoids and the associative law III. (Szász-Hájek groupoids). Kepka, Tomáš; Trch, Milan |
31-44 | Groupoids and the associative law V. (Szász-Hájek groupoids fo type (A, A, B)). Kepka, Tomáš; Trch, Milan |