Júlia Vaz de Carvalho On the Variety of <i>m</i>-generalized Lukasiewicz Algebras of Order <i>n</i>. 291-305 2010 94 Stud Logica 2 https://doi.org/10.1007/s11225-010-9236-8 db/journals/sLogica/sLogica94.html#Carvalho10