GZ Cnc and NSV 10934 preprint Dear Colleagues, The following paper based on VSNET Collaboration is accepted for publication in Astron. Astrophys. "Two X-ray bright cataclysmic variables with unusual activities: GZ Cnc and NSV 10934" Authors: T. Kato, P.A. Dubovsky, R. Stubbings, M. Simonsen, H. Yamaoka, P. Nelson, B. Monard, A. Peaece, G. Garradd. The PostScript figures are available at: http://vsnet.kusastro.kyoto-u.ac.jp/pub/vsnet/preprints/GZ_Cnc/ Regards, Taichi Kato