Voir la notice de l'article provenant de la source Hellenic Digital Mathematics Library
@article{EUG_1995__44_a5, author = {N.K. Stephanidis}, title = {Neure {Resultate} der {Theorie} der {Strahlensysteme}}, journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\Gamma} }, pages = {41-50}, publisher = {mathdoc}, volume = {44}, year = {1995}, language = {gr}, url = {http://geodesic.mathdoc.fr/item/EUG_1995__44_a5/} }
N.K. Stephanidis. Neure Resultate der Theorie der Strahlensysteme. Ευκλείδης Γ , Tome 44 (1995), p. 41-50. http://geodesic.mathdoc.fr/item/EUG_1995__44_a5/