Zsila, Ferenc, Hisami Matsunaga, Zsolt Bikadi, and Jun Haginaka. (Jan-08-2006) 2006. “Multiple Ligand-Binding Properties Of The Lipocalin Member Chicken Α1-Acid Glycoprotein Studied By Circular Dichroism And Electronic Absorption Spectroscopy: The Essential Role Of The Conserved Tryptophan Residue”. Biochimica Et Biophysica Acta (Bba) - General Subjects 1760: 1248-1273. doi:10.1016/j.bbagen.2006.04.006.