1. Escobal, P.R.: Methods of orbit determination. Wiley, New York (1965). Sect. 7.4
2. Vallado, D.A.: Fundamentals of astrodynamics and applications, 3rd edn. Microcosm Press, Hawthorne (2007). Sect. 7.3.1
3. Roy, A.E.: Orbital motion, 4th edn. Taylor & Francis, New York (2005). Sect. 14.3
4. Bate, R.R., Mueller, D.D., White, J.E.: Fundamentals of astrodynamics. Dover, New York (1971). Sect. 2.11
5. Prussing, J.E., Conway, B.A.: Orbital mechanics, 2nd edn. Oxford University Press, Oxford (2013). Sect. 14.3