1. Electrofission and photofission of 238U in the energy range 6–60MeV;Arruda Neto;Phys. Rev.,1980
2. The angular distribution of photofission fragments;Baerg;Can. J. Phys.,1959
3. The double-humped fission barrier;Bjørnholm;Rev. Mod. Phys,1980
4. Angular distribution of 238U photofission fragments near the fission threshold;Bocharova;Sov. J. Phys. JETP,1965
5. Bohr, A., 1956. On the theory of nuclear fission. In: Proc. 1st Un Int. conf. Peaceful Uses of Atomic energy, vol. I. New York, p. 151.