1. Occurrence and transformation of phyllocladanes in brown coals from Nograd Basin, Hungary;Alexander;Geochim. Cosmochim. Acta,1987
2. The use of plant-derived biomarkers for correlation of oils with source rocks in the Cooper/Eromanga basin system, Australia;Alexander;APEA J.,1988
3. Le bassin houiller viséen d'Agadès—I. Géologie, pétrographie et physico-chimie;Alpern;Palinologia,1978
4. The taxonomic distribution of some diterpene hydrocarbons;Aplin;Phytochemistry,1963
5. Classification of gymnosperms from the view point of paleobotany;Arnold;Bot. Gaz.,1948