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Watson, Christopher (4. januar 2010). «Gamma Ursae Minoris». AAVSO Website. American Association of Variable Star Observers. Henta 18. mai 2014.
Templeton, Matthew (16. juli 2010). «Delta Scuti and the Delta Scuti Variables». Variable Star of the Season. AAVSO (American Association of Variable Star Observers). Henta 22. juni 2016.
Watson, Christopher (4. januar 2010). «Lambda Ursae Minoris». AAVSO Website. American Association of Variable Star Observers. Henta 22. juni 2016.
Otero, Sebastian Alberto (16. november 2009). «RR Ursae Minoris». AAVSO Website. American Association of Variable Star Observers. Henta 18. mai 2014.
Pasinetti Fracassini, L. E.; Pastori, L.; Covino, S.; Pozzi, A. (February 2001). «Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition - Comments and statistics». Astronomi and Astrophysics367: 521–24. Bibcode:2001A&A...367..521P. arXiv:astro-ph/0012289. doi:10.1051/0004-6361:20000451.
Uttenthaler, S.; van Stiphout, K.; Voet, K.; van Winckel, H.; van Eck, S.; Jorissen, A.; Kerschbaum, F.; Raskin, G.; Prins, S.; Pessemier, W.; Waelkens, C.; Frémat, Y.; Hensberge, H.; Dumortier, L.; Lehmann, H. (2011). «The evolutionary state of Miras with changing pulsation periods». Astronomi & Astrophysics531: A88. Bibcode:2011A&A...531A..88U. arXiv:1105.2198. doi:10.1051/0004-6361/201116463. CS1 maint: Multiple names: authors list (link)
Lee, B.-C.; Han, I.; Park, M.-G.; Mkrtichian, D.E.; Hatzes, A.P.; Kim, K.-M. (2014). «Planetary Companions in K giants β Cancri, μ Leonis, and β Ursae Minoris». Astronomi & Astrophysics566: 7. Bibcode:2014A&A...566A..67L. doi:10.1051/0004-6361/201322608. A67. CS1 maint: Multiple names: authors list (link)
Pasinetti Fracassini, L. E.; Pastori, L.; Covino, S.; Pozzi, A. (February 2001). «Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition - Comments and statistics». Astronomi and Astrophysics367: 521–24. Bibcode:2001A&A...367..521P. arXiv:astro-ph/0012289. doi:10.1051/0004-6361:20000451.
Uttenthaler, S.; van Stiphout, K.; Voet, K.; van Winckel, H.; van Eck, S.; Jorissen, A.; Kerschbaum, F.; Raskin, G.; Prins, S.; Pessemier, W.; Waelkens, C.; Frémat, Y.; Hensberge, H.; Dumortier, L.; Lehmann, H. (2011). «The evolutionary state of Miras with changing pulsation periods». Astronomi & Astrophysics531: A88. Bibcode:2011A&A...531A..88U. arXiv:1105.2198. doi:10.1051/0004-6361/201116463. CS1 maint: Multiple names: authors list (link)
Bianchini, A.; Tappert, C.; Canterna, R.; Tamburini, F.; Osborne, H.; Cantrell, K. «RW Ursae Minoris (1956): An Evolving Postnova System». The Publications of the Astronomical Society of the Pacific115 (8,9): 811–18. Bibcode:2003PASP..115..811B. doi:10.1086/376434.
Lee, B.-C.; Han, I.; Park, M.-G.; Mkrtichian, D.E.; Hatzes, A.P.; Kim, K.-M. (2014). «Planetary Companions in K giants β Cancri, μ Leonis, and β Ursae Minoris». Astronomi & Astrophysics566: 7. Bibcode:2014A&A...566A..67L. doi:10.1051/0004-6361/201322608. A67. CS1 maint: Multiple names: authors list (link)
Pasinetti Fracassini, L. E.; Pastori, L.; Covino, S.; Pozzi, A. (February 2001). «Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition - Comments and statistics». Astronomi and Astrophysics367: 521–24. Bibcode:2001A&A...367..521P. arXiv:astro-ph/0012289. doi:10.1051/0004-6361:20000451.
Uttenthaler, S.; van Stiphout, K.; Voet, K.; van Winckel, H.; van Eck, S.; Jorissen, A.; Kerschbaum, F.; Raskin, G.; Prins, S.; Pessemier, W.; Waelkens, C.; Frémat, Y.; Hensberge, H.; Dumortier, L.; Lehmann, H. (2011). «The evolutionary state of Miras with changing pulsation periods». Astronomi & Astrophysics531: A88. Bibcode:2011A&A...531A..88U. arXiv:1105.2198. doi:10.1051/0004-6361/201116463. CS1 maint: Multiple names: authors list (link)
Bianchini, A.; Tappert, C.; Canterna, R.; Tamburini, F.; Osborne, H.; Cantrell, K. «RW Ursae Minoris (1956): An Evolving Postnova System». The Publications of the Astronomical Society of the Pacific115 (8,9): 811–18. Bibcode:2003PASP..115..811B. doi:10.1086/376434.