RU UMi
References
Bell1993
Bell, S.A., Hilditch, R.W. & Edwin, R.P. “CCD Photometry of the Eclipsing Binary RU UMi”: 1993, Monthly Notices of the Royal Astronomical Society, Volume 260, pp. 478-490
http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1993MNRAS.260..478B&db_key=AST&high=3f2ea4260a29651Maxted1996
Maxted, P.F.L. & Hilditch, R.W. “The Near-contact Binary System RU Ursae Minoris”: 1996, The Observatory, Volume 116, pp. 288-293
http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1996Obs...116..288M&db_key=AST&high=3f2ea4260a29651Manimanis2001
Manimanis, V.N. & Niarchos, P.G. “A Photometric Study of the Near-contact System RU Ursae Minoris”: 2001, Astronomy & Astrophysics, Volume 369, pp. 960-964
http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2001A%26A...369..960M&db_key=AST&high=3f2ea4260a29651