Authors: Valchev, I Valchev, V Ganev, I

Citation: I. Valchev et al., Improved elemental chlorine-free bleaching of hardwood kraft pulp, CELL CHEM T, 33(1-2), 1999, pp. 61-66

Authors: Valchev, V Valchev, I Christova, E

Citation: V. Valchev et al., Introduction of an enzyme stage in bleaching of hardwood kraft pulp, CELL CHEM T, 32(5-6), 1998, pp. 457-462