[1] Bajpai, P.K., 2010. Solving the problems of recycled fiber processing with enzymes.Journal of Bioresources, 5(2):1-15.
[2] Verma, P., and Bhardwaj, N.K., and Chakraborti, S.K., 2010. Enzymatic upgradation of secondary fibers. Journal of Ippta, 22(4):133-136.
[3] Pala, H., Lemos, M.A., Mota, M., and Gama, F.M. 2001. Enzymatic upgrade of old paperboard containers. Journal of Enzyme and Microbial Technology, 29:274-279.
[4] Pala, H., Mota, M., and Gama, F.M., 2002. Refining and enzymatic treatment of secondary fibers for paperboard production: cyberflex measurement of fiber flexibility. Cost E20-Wood Fiber Cell Wall Structure.
[5] Dienes, D., Egyházi, A., and Réczey, K. 2004. Treatment of Recycled Fiber with Trichoderma Cellulases. Journal of Industrial Crops and Products. (20):11–21.
[6] Tripathi, S., Nirmal, Sh., Mishra, O., Bajpai, P., and Bajpai, P.K. 2008. Enzymatic Refining of Chemical Pulp. Journal of Ippta. 20(3):129-132.
[7] Wu, Q., Chen, J., Yang, G., Wang, Sh., Kong, F., and Dong, Yi. 2010. Improvement of drainability of poplar APMP pulp by enzymes treatment. www.tappi.org/Downloads/ Conference-Papers/10PAP137.aspx.
[8] Maximino, M.G., Taleb, M.C., Adell, A.M. and Formento, J.C. 2011. Application of Hydrolituc Enzymes and Refining on Recycled Fibers. Journal of Cellulose Chemistry and Technology. 45(5-6):397-403.
[9] Gil, N., Gil, C., Amaral, M.E., Costa, A.P., and Duarte, A.P. 2009. Use of Enzymes to Improve the Refining of a Bleached Eucalyptus Globulus Kraft Pulp. Biochemical Engineering Journal. 46: 89-95.
[10] Oksanen, T., Pere, J., Paavilainen, L., J Buchert, J., and Viikari, L. 2000. Treatment of Recycled Kraft Pulps with Trichoderma Reesei Hemicellulases and Cellulases. Journal of Biotechnology. 78:39-48.
[11] Barzan, A. 1998. Investigation of using packaging wastepaper to produce corrugated board in Mazandaran Wood and Paper Industry. M.Sc. Thesis, Tarbiat Modarres University. 95p.
[12] Bhardwaj, N.K., Bajpai, P., and Bajpai, P.K. 1996. Use of Enzymes in Modification of Fibers for Improved Beatability. Journal of Biotechnology. 51: 21-26.
[13] Mirshokrai, A. 2000. Handbook of pulp and paper technology (Translated in Persian). 2nd Ed., Aeazh, Tehran, 520p.
[14] Afra, E. 2003. Properties of paper. Agricultural Sciences Press, 392p. (In Persian).
[15] Akbarpour, I. 2011. Enzymatic deinking of old newspaper. M.Sc. Thesis, Gorgan University of Agricultural Sciences and Natural Resources.121p.
[16] Kang, T. 2007. Role of External Fibrillation in Pulp and Paper Properties. Journal of P.A.J., 53(3): Pp 199.
[17] Oksanen, T., Pere, J., Buchert, J., and Viikari, L. 1997. The Effect of Trichoderma Reesei Cellulases and Hemicellulases on the Paper Technical Properties of Never-Dried Bleached Kraft Pulp. Journal of Cellulose, 4:329-339.
[18] Wong, K., Richardson, J., and Mansfield, Sh. 2000. Enzymatic Treatment on Mechanical Pulp Fibers for Improving Papermaking Properties. Journal of Biotechnol. Prog. 16:1025-1029.
[19] Singh, R., and Bhardvaj. 2011. Enzymatic treatment of recycled fibers for improving of drainage: An overview, IPPTA j., 23(2):121-126.
[20] Kibblewhite, R.P., and Wong, K.K.Y. 1999. Modification of a Aommercial Rdiate Pine Kraft Pulp Using Carbohydrate Degrading Enzymes. Appita Journal. 52(4), 300-304.
[21] Lecourt, M., Sigoillot, J., and Petit-Conil, M. 2010. Cellulose-Assisted Refining of Chemical Pulp: Impact of Enzymatic Charge and Refining Intensity Consumption and Pulp Quality. Journal of Process Biochemistry, 45:1274-1278.
[22] Clarc, T.A., Allison, R.W., and Kibblewhite, R.P. 1997. Effect of Enzymatic Modification on Radiate Pine Kraft Fiber Wall Chemistry and Physical Properties. Appita Journal, 50(4):329-335.
[23] Bajpai, P., Mishra, Sh.P., Mishra, O.P., Kumar, S., and Bajpai, P.K. 2006. Use of Enzymesfor Reduction in Refining Energy-Laboratory Studies. Journal of Tappi. 5(11): 25-32.