1. Grothendieck spaces and vector measures;Diestel,1973
2. Linear Operators I: General Theory;Dunford,1958
3. Mean ergodic flows;Eberlein;Adv. in Math.,1976
4. Semi-groups of transformations in general weak topologies;Feller;Ann. of Math.,1953
5. The tensor product of semigroups and the operator equation SX − XS = A;Freeman;J. Math. Mech.,1970