Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{ELMA_1994__49_1_141557, author = {Gunter Lorenzen}, title = {Why {Means} in {Two} {Arguments} are {Special.}}, journal = {Elemente der Mathematik}, pages = {32--37}, publisher = {mathdoc}, volume = {49}, number = {1}, year = {1994}, zbl = {0860.26014}, url = {http://geodesic.mathdoc.fr/item/ELMA_1994__49_1_141557/} }
Gunter Lorenzen. Why Means in Two Arguments are Special.. Elemente der Mathematik, Tome 49 (1994) no. 1, pp. 32-37. http://geodesic.mathdoc.fr/item/ELMA_1994__49_1_141557/