1. Absorptiometric determination of acid - soluble lignin in semichemical bisulfite pulps and in some woods and plants;Schöning,1965
2. Capillary electrophoretic determination of lignin degradation products obtained by permanganate oxidation;Javor;Anal Chim Acta,2003
3. Absorptiometric determination of acid - soluble lignin in semichemical bisulfite pulps and in some woods and plants;Schöning,1965
4. Simplified determination of total lignin content in kraft lignin samples and black liquors;Aldaeus;Holzforschung,2011
5. Spectra of lignins from pulp and spent liquor;Norrström,1970