Voir la notice de l'article provenant de la source Hellenic Digital Mathematics Library
@article{EUG_1991__29_a13, author = {D. A. Anapolitanos}, title = {A note of definable skolem functions}, journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\Gamma} }, pages = {143-146}, publisher = {mathdoc}, volume = {29}, year = {1991}, language = {gr}, url = {http://geodesic.mathdoc.fr/item/EUG_1991__29_a13/} }
D. A. Anapolitanos. A note of definable skolem functions. Ευκλείδης Γ , Tome 29 (1991), p. 143-146. http://geodesic.mathdoc.fr/item/EUG_1991__29_a13/