@article{EU_1975-1976__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} }, pages = {35-37}, publisher = {mathdoc}, volume = {2}, year = {1975-1976}, language = {gr}, url = {http://geodesic.mathdoc.fr/item/EU_1975-1976__2_a111/} }