Вулкан (хипотетична планета) (Bulgarian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Вулкан (хипотетична планета)" in Bulgarian language version.

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books.google.com

Galle, J. G. Account of the discovery of the planet of Le Verrier at Berlin // Monthly Notices of the Royal Astronomical Society 7. Blackwell Publishing, 13 ноември 1846. DOI:10.1093/mnras/7.9.153. с. 153.
Clemence, G. M. The Relativity Effect in Planetary Motions // Reviews of Modern Physics 19 (4). 1947. DOI:10.1103/RevModPhys.19.361. с. 361–364. (math)
Steffl, A. J. A Search for Vulcanoids with the STEREO Heliospheric Imager // Icarus 233 (1). 2013. DOI:10.1016/j.icarus.2012.11.031. с. 48–56.

Clemence, G. M. The Relativity Effect in Planetary Motions // Reviews of Modern Physics 19 (4). 1947. DOI:10.1103/RevModPhys.19.361. с. 361–364. (math)

JPL Small-Body Database Search Engine: a < 0.7 (AU) and a > 0 (AU) // JPL Solar System Dynamics. Посетен на 20 януари 2013.