1. Nonlinear functions of weak processes, I;Segal;J. Funct. Anal.,1969
2. Transformations in Wiener space and squares of quantum fields;Segal;Advances Math.,1970
3. Notes toward the construction of non-linear quantum fields, I;Segal,1967
4. Local nonlinear functions of quantum fields;Segal,1968
5. Mathematical theory of quantum fields, Lecture;Segal,1968