http://arxiv.org/abs/1409.1921 "Cataclysmic Variables in the SUPERBLINK Proper Motion Survey" In addition, PM I03338+3320 has not been detected in x-ray surveys. There is likely ID: 033354.4 +332004 (2000.0) 1RXS-F_J033354.5+332005 0.029 0.45 0.25