| 435-444 | Symmetric difference in orthomodular lattices. Dorfer, Gerhard; Dvurečenskij, Anatolij; Länger, Helmut |
| 445-455 | Which countable ordered sets have a dense linear extension?. Rutkowski, Aleksander |
| 457-490 | Linear finitely separated objects of subcategories of domains. Paseka, Jan |
| 491-496 | Isometries in non-abelian multilattice groups. Jasem, Milan |
| 497-514 | Products of mode varieties and algebras of subalgebras. Pilitowska, Agata; Romanowska, Anna; Roszkowska-Lech, Barbara |
| 515-524 | $M$-solid varieties and $Q$-free clones. Denecke, K.; Głazek, K. |
| 525-529 | Inverse semirings whose additive endomorphisms are multiplicative. Pondělíček, Bedřich |
| 531-540 | Generalized Herglotz theorem in vector lattices. Duchoň, Miloslav |
| 541-563 | Reversibility in generalized Pascal triangles and binary reversibility in one-dimensional cellular automata. Korec, Ivan |
| 565-571 | Professor Michal Greguš septuagenarian. Šeda, Valter |