SOLÁR, Rastislav et al. Alkaline and alkaline/oxidation pre-treatments of spruce wood. Part 1: Chemical alterations of wood and its digestibility under conditions of craft cook. In Wood research. ISSN 1336-4561, 2009, vol. 54, no. 4, p. 1-12. APVV-0282-06. WOS, SCOPUS. Dostupné na internete: <http://www.woodresearch.sk/wr/200904/01.pdf>