@article{RSMUP_1981__65__119_0,
     author = {Unterholzner, Paola},
     title = {Algebraic and relational semantics for tense logics},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {119--128},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {65},
     year = {1981},
     mrnumber = {653288},
     zbl = {0482.03006},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1981__65__119_0/}
}