SBS 0335–052 E and W: Implications of new broad-band and Hα photometry S. A. Pustilnik, A. G. Pramskij and A. Y. Kniazev A&A, 425 1 (2004) 51-65 Published online: 10 September 2004 DOI: 10.1051/0004-6361:20034173