@article{GDZPPN002349418, title = {Sufficient Data Reduction and Exponential Families.}, journal = {Mathematica Scandinavica}, volume = {22}, year = {1968}, pages = {197-202}, zbl = {0249.62018}, url = {http://dml.mathdoc.fr/item/GDZPPN002349418} }
Barndorff-Nielsen, O., Pedersen, K. Sufficient Data Reduction and Exponential Families.. Mathematica Scandinavica, Tome 22 (1968) pp. 197-202. http://gdmltest.u-ga.fr/item/GDZPPN002349418/