1. Accardi, L., Cecchini, C.: Conditional expectations in von Neumann algebras and a theorem of Takesaki. J. Funct. Anal. 45, 245–273 (1982)
2. Barndorff-Nielsen, O.: Information and exponential families in statistical theory. Wiley Series in Probability and Mathematical Statistics. Chichester: John Wiley & Sons, Ltd., 1978
3. Barndorff-Nielsen, O.E., Gill, R., Jupp, P.E.: On quantum statistical inference. J. R. Stat. Soc. Ser. B Stat. Methodol. 65, 775–816 (2003)
4. Blank, J., Exner, P., Havliček, M.: Hilbert space operators in quantum physics. New York: American Institute of Physics, 1994
5. Bratteli, O., Robinson, D.W.: Operator algebras and quantum statistical mechanics. 1. C*- and W*–algebras, symmetry groups, decomposition of states. 2nd ed., Texts and Monographs in Physics, New York: Springer Verlag, 1987