1. Blechschmidt, J.; Heinemann, S. and Süss, H-U. – Mechanical pulping. In: Handbook of Pulp. Volume 2, Section II Ed. Sixta, H. WILEY-VCH Verlag GmbH &Co. KGaA, Weinheim, 2006 pgs. 1069–1148.
2. literature review. In: IV International Refining Conference. PIRA, Fiuggi, 1997 Paper 1 pgs. 5–43.
3. Lundin, T. – Tailoring pulp fibre properties in low consistency refining. Academic dissertation, Åbo Akademi University, Abo, 2008 259 pgs www.researchgate.net/publication/261286869_Tailoring_pulp_fibre_properties_in_low_consistency_refing_diss/link/543cfc4e0cf2c432f7423263
4. Demuner, B. J.; Manfredi, V. and Claudio-da-Silva Jr., E. – O refino da celulose de eucalipto – uma análise fundamental. O Papel, 52 (8): 44 – 54 (1990).
5. Stevens, W. V. – Refining. In: Pulp and Paper Manufacture – Volume 6. Ed. Hagemeyer, R.W., Manson, D.W. and Kocurek, M.J. The Joint Textbook Committee of the Paper Industry, Atlanta/Montreal, 1992: 187–219 (1992).