@article{MR_2001__56_a1,
     author = {I. E. \ensuremath{\Pi}\ensuremath{\upsilon}\ensuremath{\rho}\ensuremath{\gamma}\ensuremath{\iota}\ensuremath{\omega}\ensuremath{\tau}\ensuremath{\acute\alpha}\ensuremath{\kappa}\ensuremath{\eta}\ensuremath{\varsigma}},
     title = {\ensuremath{\Phi}\ensuremath{\omega}\ensuremath{\varsigma} \ensuremath{\varepsilon}\ensuremath{\xi} \ensuremath{\alpha}\ensuremath{\nu}\ensuremath{\alpha}\ensuremath{\tau}o\ensuremath{\lambda}\ensuremath{\acute\omega}\ensuremath{\nu}: {O} {M\ensuremath{\alpha}\ensuremath{\theta}\ensuremath{\eta}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\kappa}\'{o}\ensuremath{\varsigma}} {K\ensuremath{\omega}\ensuremath{\nu}\ensuremath{\sigma}\ensuremath{\tau}\ensuremath{\alpha}\ensuremath{\nu}\ensuremath{\tau}\ensuremath{\acute\iota}\ensuremath{\nu}o\ensuremath{\varsigma}} {K\ensuremath{\alpha}\ensuremath{\rho}\ensuremath{\alpha}\ensuremath{\theta}\ensuremath{\varepsilon}o\ensuremath{\delta}\ensuremath{\omega}\ensuremath{\rho}\ensuremath{\acute\eta}} \ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\iota} \ensuremath{\tau}o {E\ensuremath{\lambda}\ensuremath{\lambda}\ensuremath{\eta}\ensuremath{\nu}\ensuremath{\iota}\ensuremath{\kappa}\'{o}} {\ensuremath{\Pi}\ensuremath{\alpha}\ensuremath{\nu}\ensuremath{\varepsilon}\ensuremath{\pi}\ensuremath{\iota}\ensuremath{\sigma}\ensuremath{\tau}\ensuremath{\acute\eta}\ensuremath{\mu}\ensuremath{\iota}o} \ensuremath{\tau}\ensuremath{\eta}\ensuremath{\varsigma} {\ensuremath{\Sigma}\ensuremath{\mu}\ensuremath{\acute\upsilon}\ensuremath{\rho}\ensuremath{\nu}\ensuremath{\eta}\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 = {15-44},
     publisher = {mathdoc},
     volume = {56},
     year = {2001},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_2001__56_a1/}
}