1. A family of spatial periodic orbits near the Moon and planets;Lidov;Dokl. Akad. Nauk SSSR,1977
2. The “halo” family of 3-dimensional periodic orbits in the earth-moon restricted 3-body problem;Breakwell;Celestial Mech.,1979
3. Targeting cislunar near rectilinear halo orbits for human space exploration;Williams,2017
4. Near rectilinear halo orbits and their application in cis-lunar space;Zimovan,2017
5. NASA plans to build a Moon-orbiting space station: here's what you should know;Wall,2018