vecteur de Hamilton
2003 / Tracing a planet's orbit with a straight edge and a compass with the help of the hodograph and the Hamilton vector / E. Guillaumín-España ; A. L. Salas-Brito ; H. N. Núñez-Yépez / American Journal of Physics 71 (2003) p. 585 [doi]
2003 / Vector constants of the motion and orbits in the Coulomb/Kepler problem / Gerardo Muñoz / American Journal of Physics 71 (2003) p. 1292 [doi]