| [1] | Contents. | 
| 3-10 | Weak convergence in Hoffmann-Jorgensen sense. Lachout, Petr | 
| 11-15 | A note on multivalued Baire category theorem. Urbaniec, Piotr | 
| 17-29 | About the heart of a hypergroup. Corsini, Piergiulio; Leoreanu, Violeta | 
| 31-40 | Bijective reflexions and coreflexions of commutative unars. Ježek, Jaroslav; Kepka, Tomáš | 
| 41-62 | Groupoids and the associative law XII. (Representable cardinal functions). Ježek, Jaroslav; Kepka, Tomáš |