A method for quantifying the gamma-ray burst bias. Application in the redshift range of 0–1.1 S. Boissier, R. Salvaterra, E. Le Floc’h, S. Basa, V. Buat, N. Prantzos, S. D. Vergani and S. Savaglio A&A, 557 (2013) A34 Published online: 20 August 2013 DOI: 10.1051/0004-6361/201321666