@article{MR_1996__46_a22,
     author = {E\ensuremath{\upsilon}\ensuremath{\gamma}\ensuremath{\varepsilon}\ensuremath{\nu}\ensuremath{\acute\iota}\ensuremath{\alpha} Ko\ensuremath{\lambda}\ensuremath{\acute\epsilon}\ensuremath{\zeta}\ensuremath{\alpha} and  \ensuremath{\Theta}\ensuremath{\varepsilon}\'{o}\ensuremath{\delta}\ensuremath{\omega}\ensuremath{\rho}o\ensuremath{\varsigma} B\ensuremath{\acute\iota}\ensuremath{\tau}\ensuremath{\sigma}\ensuremath{\alpha}\ensuremath{\varsigma} and  K\ensuremath{\omega}\ensuremath{\nu}/\ensuremath{\nu}o\ensuremath{\varsigma} \ensuremath{\Sigma}\ensuremath{\kappa}o\ensuremath{\rho}\ensuremath{\delta}o\ensuremath{\acute\upsilon}\ensuremath{\lambda}\ensuremath{\eta}\ensuremath{\varsigma}},
     title = {\ensuremath{\Delta}\ensuremath{\iota}\ensuremath{\acute\alpha}\ensuremath{\sigma}\ensuremath{\tau}\ensuremath{\alpha}\ensuremath{\sigma}\ensuremath{\eta}: {H} \ensuremath{\delta}\ensuremath{\upsilon}\ensuremath{\nu}\ensuremath{\alpha}\ensuremath{\mu}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\eta} \ensuremath{\varepsilon}\ensuremath{\xi}\ensuremath{\acute\epsilon}\ensuremath{\lambda}\ensuremath{\iota}\ensuremath{\xi}\ensuremath{\eta} \ensuremath{\mu}\ensuremath{\iota}\ensuremath{\alpha}\ensuremath{\varsigma} \ensuremath{\acute\epsilon}\ensuremath{\nu}\ensuremath{\nu}o\ensuremath{\iota}\ensuremath{\alpha}\ensuremath{\varsigma} \ensuremath{\pi}\ensuremath{\rho}o\ensuremath{\ddot{\upsilon}}\ensuremath{\pi}\'{o}\ensuremath{\theta}\ensuremath{\varepsilon}\ensuremath{\sigma}\ensuremath{\eta} \ensuremath{\mu}\ensuremath{\iota}\ensuremath{\alpha}\ensuremath{\varsigma} \ensuremath{\delta}\ensuremath{\iota}\ensuremath{\delta}\ensuremath{\alpha}\ensuremath{\kappa}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\eta}\ensuremath{\varsigma} \ensuremath{\pi}\ensuremath{\rho}\'{o}\ensuremath{\tau}\ensuremath{\alpha}\ensuremath{\sigma}\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 = {75-91},
     publisher = {mathdoc},
     volume = {46},
     year = {1996},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1996__46_a22/}
}