Kumar, Shiv S. (1962. december 6.). „Study of Degeneracy in Very Light Stars”. Astronomical Journal67, 579. o. DOI:10.1086/108658.
Tarter, Jill (2014. december 6.). „50 Years of Brown Dwarfs – From Prediction to Discovery to Forefront of Research” 401, 19–24. o, Kiadó: Springer. DOI:10.1007/978-3-319-01162-2_3.