Kernel Operators on Lp-spaces Associated with Semifinite von Neumann Algebras. Erwin Neuhardt (1990) Mathematische Zeitschrift
KMS-symmetric Markov semigroups. J. Martin Lindsay, Stanislaw Goldstein (1995) Mathematische Zeitschrift
Kolmogoroff consistency theorem for Gleason measures Artur Bartoszewicz (1978) Colloquium Mathematicae