SBS 0335-052E+W: deep VLT/FORS+UVES spectroscopy of the pair of the lowest-metallicity blue compact dwarf galaxiesY. I. Izotov, N. G. Guseva, K. J. Fricke and P. PapaderosA&A, 503 1 (2009) 61-72DOI: https://doi.org/10.1051/0004-6361/200911965
