@article{DEME_2002_46_a1,
     author = {Richard Skemp},
     title = {E\ensuremath{\nu}\ensuremath{\nu}o\ensuremath{\iota}o\ensuremath{\lambda}o\ensuremath{\gamma}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\eta} {K\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\alpha}\ensuremath{\nu}\'{o}\ensuremath{\eta}\ensuremath{\sigma}\ensuremath{\eta}} \ensuremath{\kappa}\ensuremath{\alpha}\ensuremath{\iota} \ensuremath{\varepsilon}\ensuremath{\rho}\ensuremath{\gamma}\ensuremath{\alpha}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\iota}\ensuremath{\alpha}\ensuremath{\kappa}\ensuremath{\acute\eta} {K\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\alpha}\ensuremath{\nu}\'{o}\ensuremath{\eta}\ensuremath{\sigma}\ensuremath{\eta}}},
     journal = {\ensuremath{\Delta}\ensuremath{\varepsilon}\ensuremath{\lambda}\ensuremath{\tau}\ensuremath{\acute\iota}o \ensuremath{\tau}\ensuremath{\eta}\ensuremath{\varsigma} E\ensuremath{\lambda}\ensuremath{\lambda}\ensuremath{\eta}\ensuremath{\nu}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\eta}\ensuremath{\varsigma} M\ensuremath{\alpha}\ensuremath{\theta}\ensuremath{\eta}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\tau}\ensuremath{\iota}\ensuremath{\kappa}\ensuremath{\acute\eta}\ensuremath{\varsigma} E\ensuremath{\tau}\ensuremath{\alpha}\ensuremath{\iota}\ensuremath{\rho}\ensuremath{\acute\iota}\ensuremath{\alpha}\ensuremath{\varsigma}},
     pages = {17--35},
     year = {2002},
     volume = {46},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/DEME_2002_46_a1/}
}