@article{ASNSP_1967_3_21_2_111_0,
     author = {Yaqub, Adil},
     title = {Primal clusters and local binary algebras},
     journal = {Annali della Scuola Normale Superiore di Pisa - Scienze Fisiche e Matematiche},
     pages = {111--119},
     publisher = {Scuola normale superiore},
     volume = {Ser. 3, 21},
     number = {2},
     year = {1967},
     mrnumber = {218292},
     zbl = {0149.25904},
     language = {en},
     url = {http://www.numdam.org/item/ASNSP_1967_3_21_2_111_0/}
}