Voir la notice de l'article provenant de la source Hellenic Digital Mathematics Library
@article{EUG_1990__24_a17, author = {M. \ensuremath{\Pi}. M\ensuremath{\pi}o\ensuremath{\upsilon}\ensuremath{\lambda}o\ensuremath{\beta}\ensuremath{\acute\alpha}\ensuremath{\tau}\ensuremath{\sigma}\ensuremath{\kappa}\ensuremath{\iota}}, title = {\ensuremath{\Pi}o\ensuremath{\upsilon} \ensuremath{\nu}\ensuremath{\alpha} \ensuremath{\beta}\ensuremath{\rho}o\ensuremath{\acute\upsilon}\ensuremath{\mu}\ensuremath{\varepsilon} \ensuremath{\tau}o \ensuremath{\chi}\ensuremath{\rho}\'{o}\ensuremath{\nu}o;}, journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\Gamma} }, pages = {74-77}, publisher = {mathdoc}, volume = {24}, year = {1990}, language = {gr}, url = {http://geodesic.mathdoc.fr/item/EUG_1990__24_a17/} }
Μ. Π. Μπουλοβάτσκι. Που να βρούμε το χρόνο;. Ευκλείδης Γ , Tome 24 (1990), p. 74-77. http://geodesic.mathdoc.fr/item/EUG_1990__24_a17/