- Milan Petrík, Peter Sarkoci: Associativity of Triangular Norms Characterized by the Geometry of Their Level-Sets. AMS-MSC: 39B52 53A60 03B52
- Radko Mesiar, Peter Sarkoci: Open Problems Posed at the Tenth International Conference on Fuzzy Set Theory and Applications (FSTA 2010, Liptovský Ján, Slovakia). AMS-MSC: 03E72 06F25 60E05
- Mirko Navara, Milan Petrík, Peter Sarkoci: Explicit Formulas for Generators of Triangular Norms (2009). Accepted in Publ.Math.Debreceen. AMS-MSC: 03E72 20M14 26B05 39B22 54E70
- Peter Sarkoci: Dominance of Ordinal Sums of the Łukasiewicz and the Product Triangular Norm (2009). AMS-MSC: 26D07 39B62