Andersen, Erling (Setembro de 1970). «Sufficiency and Exponential Families for Discrete Sample Spaces». Journal of the American Statistical Association, Vol. 65, No. 331. Journal of the American Statistical Association. 65 (331): 1248–1255. JSTOR2284291. MR268992. doi:10.2307/2284291
Andersen, Erling (Setembro de 1970). «Sufficiency and Exponential Families for Discrete Sample Spaces». Journal of the American Statistical Association, Vol. 65, No. 331. Journal of the American Statistical Association. 65 (331): 1248–1255. JSTOR2284291. MR268992. doi:10.2307/2284291
Andersen, Erling (Setembro de 1970). «Sufficiency and Exponential Families for Discrete Sample Spaces». Journal of the American Statistical Association, Vol. 65, No. 331. Journal of the American Statistical Association. 65 (331): 1248–1255. JSTOR2284291. MR268992. doi:10.2307/2284291
Kupperman, M. (1958) "Probabilities of Hypotheses and Information-Statistics in Sampling from Exponential-Class Populations", Annals of Mathematical Statistics, 9 (2), 571–575 JSTOR2237349