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References
- ↑ "Horizon Online Ephemeris System for Pluto Barycenter". JPL Horizons On-Line Ephemeris System @ Solar System Dynamics Group. Retrieved January 16, 2011.
- ↑ Rommens, Johanna M.; Iannuzzi, Michael C.; Kerem, Bat-Sheva; Drumm, Mitchell L.; Melmer, Georg; Dean, Michael; Rozmahel, Richard; Cole, Jeffery L.; Kennedy, Dara; Hidaka, Noriko; Zsiga, Martha; Buchwald, Manuel; Tsui, Lap-Chee; Riordan, John R.; Collins, Francis S. (8 September 1989). "Identification of the cystic fibrosis gene: chromosome walking and jumping". Science. 245 (4922): 1059–1065. doi:10.1126/science.2772657. PMID 2772657 . Retrieved 30 October 2013.
- ↑ Powlesland, R. G. (1989). Kakapo Recovery Plan 1989–1994. Wellington: Department of Conservation.
- ↑ Brian Fox (forwarded by Leonard H. Tower Jr.) (June 8, 1989). "Bash is in beta release!". Newsgroup: gnu.announce . Retrieved October 28, 2010.
- ↑ Supplee, James M. (1989). "Relativistic buoyancy". American Journal of Physics . 57 (1): 75–77. Bibcode:1989AmJPh..57...75S. doi:10.1119/1.15875. ISSN 0002-9505.
- ↑ "About the Cochrane Library". The Cochrane Library. Archived from the original on 2011-01-05. Retrieved January 25, 2011.
- ↑ Lambert, Mark (1990). Jane's All The World's Aircraft 1990–1991. Coulsdon, UK: Jane's Defence Data. ISBN 978-0-7106-0908-3.