The new AM Her system RX J0704.2+6203 - Northern twin of BL HydriG. H. Tovmassian, P. Szkody, J. Greiner, S. V. Zharikov, F.-J. Zickgraf, A. Serrano, J. Krautter, I. Thiering and V. NeustroevA&A, 379 1 (2001) 199-207DOI: https://doi.org/10.1051/0004-6361:20011200