@article{CTGDC_2004__45_2_147_0,
     author = {Ebrahimi, M. Mehdi and Tabatabaee, M. Vojdani and Mahmoudi, M.},
     title = {Metrizability of $\sigma $-frames},
     journal = {Cahiers de Topologie et G\'eom\'etrie Diff\'erentielle Cat\'egoriques},
     pages = {147--156},
     publisher = {Dunod \'editeur, publi\'e avec le concours du CNRS},
     volume = {45},
     number = {2},
     year = {2004},
     zbl = {1061.06024},
     mrnumber = {2072936},
     language = {en},
     url = {http://www.numdam.org/item/CTGDC_2004__45_2_147_0/}
}