UBVR_c_I_c_ analysis of the recently discovered totally eclipsing extreme mass ratio binary V1853 Orionis, and a statistical look at 25 other extreme mass ratio solar-type contact binaries
UBVR_c_I_c_ analysis of the recently discovered totally eclipsing extreme mass ratio binary V1853 Orionis, and a statistical look at 25 other extreme mass ratio solar-type contact binaries(English)