Kačík, František

The changes of lignin in burning of spruce wood / F. Kačík, I. Marková, A. Osvald. -- The paper deals with isolated lignins analysis from thermally degraded spruce wood. On the TAPPI and dioxan lignins basis, the separate layers have been compared, indicated according to the temperature intervals in the samples being investigated

In Cellulose Chemistry and Technology. -- Bucuresti : Editura Academei Romane, 1999. -- ISSN 0576-9787. -- Roč. 33, č. 3-4 (1999), s. 267-275