1. Magnus, K., Development of the stability concept in mechanics, Naturwissenschaften, 46, pp. 590–595, 1959.
2. Klein, F., and Sommerfeld, A., The Theory of the Gyroscope, pp. 342–374. Johnson Reprint Corp. ( Teubner ), New York and Stuttgart, 1965.
3. De Bra, D. B., The large attitude motions and stability due to gravity of a satellite, etc. Stanford University, California, Dept. of Aeronautics and Astronautics, SUDAER No. 126, 1962.
4. We shall employ the Einstein summation convention from this point on.