| 2023 | EUSFLAT | Conceptuality Degree of Oriented Crisply Generated Fuzzy Preconcepts. | Alexander P. Sostak, Maris Krastins, Ingrida Uljane |
| 2022 | IPMU | Parameterized Metrics and Their Applications in Word Combinatorics. | Raivis Bets, Alexander P. Sostak, Emils Mikelis Mikelsons |
| 2021 | EUSFLAT | Aggregation of Operators of Fuzzy Relational Mathematical Morphology: Erosion and Dilation. | Alexander P. Sostak, Ingrida Uljane |
| 2021 | EUSFLAT | Graded Fuzzy Preconcept Lattices: Theoretical Basis. | Alexander P. Sostak, Ingrida Uljane, Maris Krastins |
| 2020 | IPMU | Fuzzy Relational Mathematical Morphology: Erosion and Dilation. | Alexander P. Sostak, Ingrida Uljane, Patrik Eklund |
| 2019 | EUSFLAT | Some remarks on topological structures in the context of fuzzy relational mathematical morphology. | Alexander P. Sostak, Ingrida Uljane |
| 2019 | EUSFLAT | Many-level fuzzy rough approximation spaces induced by many-level fuzzy preorders and the related ditopological structures. | Alexander P. Sostak, Ingrida Uljane, Aleksandrs Elkins |
| 2017 | EUSFLAT | Fuzzy φ-pseudometrics and Fuzzy φ-pseudometric Spaces. | Alexander P. Sostak, Raivis Bets |
| 2017 | EUSFLAT | M-bornologies on L-valued Sets. | Ingrida Uljane, Alexander P. Sostak |
| 2016 | IPMU | On a Category of Extensional Fuzzy Rough Approximation L-valued Spaces. | Aleksandrs Elkins, Alexander P. Sostak, Ingrida Uljane |
| 2015 | EUSFLAT | On two categories of many valued relations. | Dikran Dikranjan, Alexander P. Sostak |
| 2014 | IJCCI | M-valued Measure of Roughness for Approximation of L-fuzzy Sets and Its Topological Interpretation. | Sang-Eon Han, Alexander P. Sostak |
| 2014 | IJCCI | Measure of Roughness for Rough Approximation of Fuzzy Sets and Its Topological Interpretation. | Alexander P. Sostak |
| 2014 | IPMU | Variable-Range Approximate Systems Induced by Many-Valued L-Relations. | Aleksandrs Elkins, Sang-Eon Han, Alexander P. Sostak |
| 2013 | EUSFLAT | Bornological structures in the context of L-fuzzy sets. | Alexander P. Sostak, Ingrida Uljane |
| 2009 | EUSFLAT | On M-Approximative Operators and M-Approximative Systems. | Alexander P. Sostak |
| 2007 | EUSFLAT | On L-valued Equalites on the L-powersets of Many-valued Sets. | Ingrida Uljane, Alexander P. Sostak |