IAU Inform. Bull. Var. Stars, 5123, 1 (2001) 
           Outburst photometry of TmzV34.  
        KATO T., UEMURA M., BUCZYNSKI D. and SCHMEER P. 
        Astron. Astrophys., 396, 929-932 (2002) 
           Two X-ray bright cataclysmic variables with unusual activities: GZ Cnc and NSV 10934.  
        KATO T. & al. 
        Astron. Astrophys., 401, 1101-1109 (2003) 
           GZ Cancri: A cataclysmic variable at the lower edge of the period gap.  
TAPPERT C. and BIANCHINI A.