Alternative transfers to the NEOs 99942 apophis, 1994 WR12, and 2007 UW1 via derived trajectories from periodic orbits of family G. de Melo, C.F.; Macau, E.E.N.; Winter, O.C. — 2009 Mathematical Problems in Engineering
Controlling the eccentricity of polar lunar orbits with low-thrust propulsion. Winter, O.C.; Mourão, D.C.; Melo, C.F.; Macau, E.N.; Ferreira, J.L.; Carvalho, J.P.S. — 2009 Mathematical Problems in Engineering