HE 0047-1756: A new gravitationally lensed double QSOL. Wisotzki, P. L. Schechter, H.-W. Chen, D. Richstone, K. Jahnke, S. F. Sánchez and D. ReimersA&A, 419 3 (2004) L31-L34DOI: https://doi.org/10.1051/0004-6361:20040131
