@article{MR_1974_1_a169,
     author = {\ensuremath{\Lambda}. K\ensuremath{\alpha}\ensuremath{\pi}\ensuremath{\varepsilon}\ensuremath{\tau}\ensuremath{\alpha}\ensuremath{\nu}\ensuremath{\acute\alpha}\ensuremath{\varsigma}},
     title = {P\ensuremath{\eta}\ensuremath{\tau}o\ensuremath{\acute\iota} \ensuremath{\alpha}\ensuremath{\rho}\ensuremath{\iota}\ensuremath{\theta}\ensuremath{\mu}o\ensuremath{\acute\iota} \ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\iota} \ensuremath{\pi}\ensuremath{\rho}\ensuremath{\acute\alpha}\ensuremath{\xi}\ensuremath{\varepsilon}\ensuremath{\iota}\ensuremath{\varsigma} \ensuremath{\mu}\ensuremath{\varepsilon} \ensuremath{\rho}\ensuremath{\eta}\ensuremath{\tau}o\ensuremath{\acute\upsilon}\ensuremath{\varsigma}},
     journal = {M\ensuremath{\alpha}\ensuremath{\theta}\ensuremath{\eta}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\eta} E\ensuremath{\pi}\ensuremath{\iota}\ensuremath{\theta}\ensuremath{\varepsilon}\ensuremath{\acute\omega}\ensuremath{\rho}\ensuremath{\eta}\ensuremath{\sigma}\ensuremath{\eta}},
     pages = {16--23},
     year = {1974},
     volume = {1},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1974_1_a169/}
}