1. R.B. Barrar, “An Analytic Proof That the Hohmann-type Transfer is the True Minimum Two-Impulse Transfer,” Astronautica Acta 9 (1): 1 (1963).
2. AIAA Education Seris;RH Baffin,1987
3. J.V. Breakwell, “Minimum Impulse Transfer,” AIAA Paper 63–416 (1963).
4. P. Contensou, “Etude Theorique des Trajectories Optimales Dans un Champ de Gravitation. Application au Cas d’un Centre d’Attraction Unique,” Astronautica Acta 9: 134 (1963).
5. T.N. Edelbaum, “Some Extensions of the Hohmann Transfer Maneuver,” ARS Journal 29 (11): 864 (1959).