Voir la notice de l'article provenant de la source Hellenic Digital Mathematics Library
@article{EUG_1987__14_a4, author = {P. Strantzalos}, title = {Semieffektive und {D-Minimale} {Aktionen}}, journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\Gamma} }, pages = {25-32}, publisher = {mathdoc}, volume = {14}, year = {1987}, language = {gr}, url = {http://geodesic.mathdoc.fr/item/EUG_1987__14_a4/} }
P. Strantzalos. Semieffektive und D-Minimale Aktionen. Ευκλείδης Γ , Tome 14 (1987), p. 25-32. http://geodesic.mathdoc.fr/item/EUG_1987__14_a4/