General Theory of Optimal Rocket Trajectories
In this chapter we develop a general theory of optimal spacecraft trajectories based on two pioneering works: Breakwell  and Lawden . Lawden introduced the concept of the primer vector, which plays a dominant role in minimum-propellant trajectories and also in other types of optimal trajectories. A more complete discussion of the topics in this chapter, including several example trajectories, is in Prussing .
- J.E. Prussing, Chapter 2: primer vector theory and applications, in Spacecraft Trajectory Optimization, ed. by B.A. Conway (Cambridge University Press, New York, 2010)Google Scholar
- J.E. Prussing, B.A. Conway, Orbital Mechanics, 2nd edn. (Oxford University Press, New York, 2013)Google Scholar
- J.E. Prussing, S.L. Sandrik, Second-order necessary conditions and sufficient conditions applied to continuous-thrust trajectories. J. Guid. Control Dyn. (Engineering Note) 28(4), 812–816 (2005)Google Scholar