Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{ELMA_1953__8_140591, author = {H. Jecklin}, title = {Trigonometrische {Mittelwerte.}}, journal = {Elemente der Mathematik}, pages = {54--60}, publisher = {mathdoc}, volume = {8}, year = {1953}, language = {de}, url = {http://geodesic.mathdoc.fr/item/ELMA_1953__8_140591/} }
H. Jecklin. Trigonometrische Mittelwerte.. Elemente der Mathematik, Tome 8 (1953), pp. 54-60. http://geodesic.mathdoc.fr/item/ELMA_1953__8_140591/