1. WO 2010/070571 A2 –Procedure of the Tanning of Skins, Material Obtained during Said Procedure and Device;AIICA,2010
2. High chrome exhaustion in a non-float tanning process using a sulphonic aromatic acid;Bacardit;Chemosphere,2008
3. New tanning process in a water immiscible organic solvent medium: use of chrome tanning materials with automatic basification;Chagne;J. Am. Leather Chem. Assoc.,1993
4. IPPC, First Draft Reference Document on Best Available Techniques in the Tanning of Hides and Skins, Draft 27 of February 2009, EC, Competitiveness and Sustainability Unit;European IPPC Bureau,2009
5. Ecological utilization of leather tannery waste with circular economy model;Hu;J. Clean. Prod.,2011