Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{AV_1936__6_1_a2, author = {Steffensen, J. F.}, title = {Zur {Theorie} der {Invalidit\"atstafel}}, journal = {Aktu\'arsk\'e v\v{e}dy}, pages = {1--9}, publisher = {mathdoc}, volume = {06}, number = {1}, year = {1936}, language = {ge}, url = {http://geodesic.mathdoc.fr/item/AV_1936__6_1_a2/} }
Steffensen, J. F. Zur Theorie der Invaliditätstafel. Aktuárské vědy, Tome 06 (1936) no. 1, pp. 1-9. http://geodesic.mathdoc.fr/item/AV_1936__6_1_a2/