1. Elements of Mathematics. Theory of Sets;Bourbaki,1968
2. Sheaves and logic;Fourman,1979
3. A Compendium of Continuous Lattices;Gierz,1980
4. New algebras of logic;Frink;Amer. Math. Assoc. Monthly,1938
5. The Theory of Stochastic Processes I;Gihman,1974