Linear and circular spectropolarimetry of diffuse interstellar bands N. L. J. Cox, P. Ehrenfreund, B. H. Foing, L. d’Hendecourt, F. Salama and P. J. Sarre A&A, 531 (2011) A25 Published online: 06 June 2011 DOI: 10.1051/0004-6361/201016365