1. Glassman, I., Am. Rocket Soc. Preprint 938–59 (November 1959).
2. Brzustowski, T. A., Ph.D. Thesis, Dept. of Aero. Eng., Princeton Univ., Princeton, New Jersey (1963).
3. Coffin, K. P., NACA TN 3332 (1954);
4. Coffin, K. P., and Brokaw, R. S., NACA TN 3929 (1957).