1. A. Swerin, L. Ödberg, Some aspect of retention aids, Fundamentals of Papermaking Materials, in: Trans. of the 11th Fund. Res. Symp., Cambridge, England, 1997, pp. 265–350.
2. The formation of paper sheets;Norman,1986
3. Effects of grammage on paper properties for twin-wire roll forming of TMP;Nordström;J. Pulp Pap. Sci.,1995
4. U.W. Winters, G.G. Duffy, R.P. Kibblewhite, Effects of grammage and concentration on paper sheet formation of pinus radiata kraft pulps, in: Proceedings of the 54th Appita Annual Conference, Melbourne, Australia, vol. 2, 2000, pp. 671–678.
5. Chemical related factors influencing the balance of formation, drainage and retention;Freeman,1996