1. A. Grothendieck, Matematika,2, No. 3, 81?127 (1958).
2. H. H. Schaeffer, Topological Vector Spaces, Macmillan (1966).
3. A. Fröhlicher and W. Bucher, Calculus in Vector Spaces without Norm, Springer-Verlag, Berlin (1966).
4. V. I. Averbukh and O. G. Smolyanov, Vestnik MGU,1, 3?8 (1972).