1. E. M. Smolin and L. Rapaport, s-Triazine and Derivatives, Interscience Publ., New York (1959).
2. V. I. Mur, Usp. Khim., 33, 182 (1964).
3. A. Kreutzberger, Fortschr. Chem. Forsch., 4, 273 (1963).
4. E. N. Zil'berman, Reactions of Nitriles [in Russian], Khimiya, Moscow (1972).
5. V. A. Pankratov and S. V. Vinogradova, Usp. Khim., 41, 117 (1972).