User:Jesscao/sandbox/JulyReferences/References
- ^ Skopal, Agustin; Shagatova, Natalie. "Measuring the orbital inclination of Z Andromedae from Rayleigh scattering" (PDF). Cornell University Library. Astronomical Institute of Slovakia. Retrieved 2 July 2015.
- ^ Curtis, Howard (2013). Orbital Mechanics for Engineering Students (Second ed.). Oxford: Butterworth-Heinemann. p. 336. ISBN 978-0-08-097747-8. Retrieved 2 July 2015.
- ^ Broad, William J (April 13, 1993). "Large Role for Russia Expected On Station". The new york times.
{{cite journal}}:|access-date=requires|url=(help)