Barndorff-Nielsen 1978, 9.1 Convex duality and exponential families. Barndorff-Nielsen, Ole (1978). Information and exponential families in statistical theory. Wiley Series in Probability and Mathematical Statistics. Chichester: John Wiley & Sons, Ltd. pp. ix+238 pp. ISBN0-471-99545-2. MR0489333.
Reprinted as Barndorff-Nielsen, Ole (2014). Information and exponential families in statistical theory. John Wiley & Sons, Ltd. doi:10.1002/9781118857281. ISBN978-111885750-2.
Barndorff-Nielsen 1978, 9.1 Convex duality and exponential families. Barndorff-Nielsen, Ole (1978). Information and exponential families in statistical theory. Wiley Series in Probability and Mathematical Statistics. Chichester: John Wiley & Sons, Ltd. pp. ix+238 pp. ISBN0-471-99545-2. MR0489333.
Reprinted as Barndorff-Nielsen, Ole (2014). Information and exponential families in statistical theory. John Wiley & Sons, Ltd. doi:10.1002/9781118857281. ISBN978-111885750-2.
Casella, George (2002). Statistical inference. Roger L. Berger (2nd ed.). Australia: Thomson Learning. Theorem 6.2.25. ISBN0-534-24312-6. OCLC46538638.
Brown, Lawrence D. (1986). Fundamentals of statistical exponential families : with applications in statistical decision theory. Hayward, Calif.: Institute of Mathematical Statistics. Theorem 2.12. ISBN0-940600-10-2. OCLC15986663.
Keener, Robert W. (2010). Theoretical statistics : topics for a core course. New York. pp. 47, Example 3.12. ISBN978-0-387-93839-4. OCLC676700036.{{cite book}}: CS1 maint: location missing publisher (link)