VLT/X-shooter observations of blue compact galaxies Haro 11 and ESO 338-IG 004 N. G. Guseva, Y. I. Izotov, K. J. Fricke and C. Henkel A&A, 541 (2012) A115 Published online: 10 May 2012 DOI: 10.1051/0004-6361/201118742