1. M. A. Kirsanov, A. A. Kruglov, S. G. Pokachalov, et al., Experimental Techniques and Equipment in Nuclear Physics Research [in Russian], Énergoatomizdat, Moscow (1984), pp. 113?118.
2. I. M. Obodovskii, S. G. Pokachalov, and V. A. Shilov, ?A new technique of purifying liquid rare gases from electronegative admixtures,? Zh. Tekh. Fiz.,50, No. 9, 2028 (1980).
3. A. B. Dmitriev and E. K. Malyshev, Neutron Ionization Chambers for Reactor Engineering [in Russian], Atomizdat, Moscow (1975), p. 94.
4. S. Kubota et al., ?Liquid and solid argon, krypton, and xenon scintillators,? Nucl. Instrum. Methods,196, No. 1, 101 (1982).