Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MET_1961__4_175115, author = {R. Wartmann}, title = {Trendextrapolation bei {Zeitreihen.}}, journal = {Metrika}, pages = {237--246}, publisher = {mathdoc}, volume = {4}, year = {1961}, zbl = {0107.13902}, url = {http://geodesic.mathdoc.fr/item/MET_1961__4_175115/} }
R. Wartmann. Trendextrapolation bei Zeitreihen.. Metrika, Tome 4 (1961), pp. 237-246. http://geodesic.mathdoc.fr/item/MET_1961__4_175115/