@article{MR_1992_39_a20,
     author = {K. T\ensuremath{\zeta}\ensuremath{\alpha}\ensuremath{\nu}\ensuremath{\acute\alpha}\ensuremath{\kappa}\ensuremath{\eta}\ensuremath{\varsigma}},
     title = {O\ensuremath{\iota} {\ensuremath{\Sigma}\ensuremath{\tau}\ensuremath{\rho}o\ensuremath{\varphi}\ensuremath{\acute\epsilon}\ensuremath{\varsigma}} \ensuremath{\sigma}\ensuremath{\tau}o {E\ensuremath{\pi}\ensuremath{\acute\iota}\ensuremath{\pi}\ensuremath{\varepsilon}\ensuremath{\delta}o} \ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\iota} \ensuremath{\tau}o\ensuremath{\nu} {X\ensuremath{\acute\omega}\ensuremath{\rho}o,} o\ensuremath{\iota} {M\ensuremath{\iota}\ensuremath{\gamma}\ensuremath{\alpha}\ensuremath{\delta}\ensuremath{\iota}\ensuremath{\kappa}o\ensuremath{\acute\iota}} {A\ensuremath{\rho}\ensuremath{\iota}\ensuremath{\theta}\ensuremath{\mu}o\ensuremath{\acute\iota}} \ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\iota} \ensuremath{\tau}\ensuremath{\alpha} {T\ensuremath{\varepsilon}\ensuremath{\tau}\ensuremath{\rho}\ensuremath{\acute\alpha}\ensuremath{\nu}\ensuremath{\upsilon}\ensuremath{\alpha}} \ensuremath{\tau}o\ensuremath{\upsilon} {Hamilton}},
     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 = {51--70},
     year = {1992},
     volume = {39},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/MR_1992_39_a20/}
}