• Earth resonant gravity assists for asteroid retrieval missions 

      Sánchez Cuartielles, Joan Pau; Alessi, Elisa Maria; García-Yarnoz, Daniel; McInnes, Colin (2013)
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      Asteroids and comets are of strategic importance for science in an effort to uncover the formation, evolution and composition of the Solar System. Near-Earth objects (NEOs) are of particular interest because of their ...