1. Handbook of Pulping and Papermaking;Biermann,1996
2. Chemical pulping processes;Sixta,2006
3. Chemical pulp;Heinemann,2006
4. Towards kraft mill closure: influence of non-process elements on green liquor dregs settling and filterability;Ellis;Appita J.,2003
5. Non-process elements in the kraft cycle, part I: source, levels and process effects;Jemaa;Pulp Pap. Canada,1999