1. W. Bunch, Nucl. Applications, 259 (1965).
2. L. N. Dobretsov and M. V. Gomoyunova, Emission Electronics [in Russian], Nauka, Moscow (1966).
3. Yu. A. Zysin, A. A. Lbov, and L. P. Sel'chenkov, Fission Product Yields and Their Distribution by Mass [in Russian], Gosatomizdat, Moscow (1963).