@article{EUG_1983_2_a111,
     author = {\ensuremath{\Theta}. K\ensuremath{\alpha}\ensuremath{\rho}\ensuremath{\alpha}\ensuremath{\mu}\ensuremath{\alpha}\ensuremath{\nu}\ensuremath{\lambda}\ensuremath{\acute\eta}\ensuremath{\varsigma}},
     title = {Tetris & \ensuremath{\pi}\ensuremath{\iota}\ensuremath{\theta}\ensuremath{\alpha}\ensuremath{\nu}\'{o}\ensuremath{\tau}\ensuremath{\eta}\ensuremath{\tau}\ensuremath{\varepsilon}\ensuremath{\varsigma}},
     journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\Gamma}},
     pages = {35--37},
     year = {1983},
     volume = {2},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/EUG_1983_2_a111/}
}