Sigma Herculis (Spanish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Sigma Herculis" in Spanish language version.

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alcyone.de

Wu, Yue; Singh, H. P.; Prugniel, P.; Gupta, R.; Koleva, M. (2011). «Coudé-feed stellar spectral library - atmospheric parameters». Astronomy and Astrophysics 525. A71.
van Belle, G. T.; van Belle, G.; Creech-Eakman, M. J.; Coyne, J.; Boden, A. F.; Akeson, R. L.; Ciardi, D. R.; Rykoski, K. M.; Thompson, R. R.; Lane, B. F.; PTI Collaboration (2008). «The Palomar Testbed Interferometer Calibrator Catalog». The Astrophysical Journal Supplement Series 176 (1). pp. 276-292.
Rodriguez, David R.; Zuckerman, B. (2012). «Binaries among Debris Disk Stars». The Astrophysical Journal 745 (2). id. 147.
Mason, Brian D.; Hartkopf, William I.; Gies, Douglas R.; Henry, Todd J.; Helsel, John W. (2009). «The High Angular Resolution Multiplicity of Massive Stars». The Astronomical Journal 137 (2). pp. 3358-3377.
Cvetkovic, Z.; Ninkovic, S. (2010). «On the Component Masses of Visual Binaries». Serbian Astronomical Journal 180. pp. 71-80.