1. Abbott, J. C., Implicational algebras, Bulletin Mathematique de la Societe des Sciences Mathematiques de la Republique Socialiste de Roumanie, 11(1) (1967), 3–23. http://www.jstor.org/stable/43679502
2. Botur, M., Halas, R., Commutative basic algebras and non-assocative fuzzy logics, Archive for Mathematical Logic, 48 (2009), 243–255. https://doi.org/10.1007/s00153-009-0125-7
3. Chajda, I., Sheffer operation in ortholattices, Acta Universitatis Palackianae Olomucensis Facultas Rerum Naturalium Mathematica, (44)(1) (2005) 19–23. http://dml.cz/dmlcz/133381
4. Chajda, I., Halas, R., Langer, H., Operations and structures derived from non-associative MV-algebras, Soft Computing, 23(12) (2019), 3935–3944. https://doi.org/10.1007/s00500-018-3309-4
5. Chajda, I., Kuhr, J., A non-associative generalization of MV-algebras, Mathematica Slovaca, 57 (2007), 301–312. https://doi.org/10.2478/s12175-007-0024-5