Voir la notice de l'article provenant de la source Math-Net.Ru
@article{TRSPY_1965_79_a3, author = {A. M. Kagan}, title = {Sufficient systems}, journal = {Informatics and Automation}, pages = {17--23}, publisher = {mathdoc}, volume = {79}, year = {1965}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TRSPY_1965_79_a3/} }
A. M. Kagan. Sufficient systems. Informatics and Automation, Articles on mathematical statistics and the theory of probability, Tome 79 (1965), pp. 17-23. http://geodesic.mathdoc.fr/item/TRSPY_1965_79_a3/