1. G. Walker, J. of Mech. Eng. Sci.,3, No. 4 (1961).
2. N. K. Elukhin and O. I. Starosvitskii, Trudy VNIIkhimmasha, Moscow (1962).
3. N. M. Karavaev and V. P. Maikov, Izv. Akad. Nauk SSSR, Otd. Tekh Nauk, No. 6 (1956).
4. Z. F. Chukhanov, Izv. Akad. Nauk SSSR, Otd. Tekh. Nauk, No. 10 (1947).
5. V. Khrinizhak, Regenerators for Gas-Turbine Units [in Russian], Mashgiz, Moscow (1962).