Polymerisation of Kraft lignin from black liquors by laccase from Myceliophthora thermophila: Effect of operational conditions and black liquor origin S. Gouveia, C. Fernández-Costas, M. A. Sanromán, D. Moldes (2013) Bioresource Technology, 131: 288-294 DOI: 10.1016/j.biortech.2012.12.155