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References
- McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 25 April 2010.
- McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 25 April 2010.
- Wade, Mark. "Proton". Encyclopedia Astronautica. Archived from the original on September 13, 2008. Retrieved 25 April 2010.
- ↑ Wade, Mark. "Soyuz 7K-L1E". Encyclopedia Astronautica. Archived from the original on 6 September 2010. Retrieved 25 April 2010.
- ↑ Wade, Mark. "Cosmos 1100". Encyclopedia Astronautica. Archived from the original on April 15, 2002. Retrieved 26 April 2010.