1. On homogeneous weighted algebras,;A. Micali;Communications in Algebra,2007
2. "Mathematics Behind Fuzzy Logic,";E. Turunen;Physica-Verlag,1999
3. Ideal theory of BCK-algebras,;K. Iséki;Math. Japon.,1976
4. Implicative and Boolean ideals of MV-algebras,;C. S. Hoo;Math. Japon.,1994
5. The genetic code as a peridic table: algebraic aspects,;J. D. Bashford;BioSystems,2000