1. The effect of stereochemistry on the mass spectra of the bis ( trimethylsilyl ) esters of maleic and fumaric acids;Large;Mass Spectrom,1973
2. Non - oxidative and oxidative alkaline degradation of pectic acid Carbohydr;Niemelä;Res,1985
3. The formation of carboxylic acids during kraft and kraft - anthraquinone pulping of birch wood;Niemelä;Holzforschung,1985
4. The demethylation and degradation of lignin or spent liquors by heating with al - kaline reagents;Enkvist;Tappi,1962
5. Gas Chromatographie and mass spectrometric study of vanillin re - lated compounds;Lhugenot;Chromatographia,1971