- The varieties of Bol-Moufang quasigroups defined by a single operation
- On WIP loops
- Parametrization of actions of a subgroup of the modular group
- A Zariski topology for k-semirings
**Some enumerational results relating the numbers of latin and frequency squares of order n**- Some results on E-inversive semigroups
- On fuzzy ordered semigroups
- Varieties of rectangular quasigroups
- Essential operations of clones
- The spectrum of a variety of modular groupoids
- Right k-weakly regular hemirings
- Congruences of ternary semigroups
- Quotient hyper residuated lattices