Extracting interstellar diffuse absorption bands from cool star spectra - Application to bulge clump giants in Baade’s windowH.-C. Chen, R. Lallement, C. Babusiaux, L. Puspitarini, P. Bonifacio and V. HillA&A, 550 (2013) A62DOI: https://doi.org/10.1051/0004-6361/201220413