Multiplication groups of quasigroups and loops II. Aleš Drápal, Tomáš Kepka, Petr Maršálek (1994) Acta Universitatis Carolinae. Mathematica et Physica
Multiplication groups of quasigroups and loops III. Tomáš Kepka, A. Jančařík (1997) Acta Universitatis Carolinae. Mathematica et Physica
Multiplication groups of quasigroups and loops IV. A. Jančařík, Tomáš Kepka, Milan Vítek (2005) Acta Universitatis Carolinae. Mathematica et Physica
Multiquasigroups and weighted projective planes Alija Mandak (2007) Kragujevac Journal of Mathematics
Multistructures determined by differential rings Jan Chvalina, Ludmila Chvalinová (2000) Archivum Mathematicum