1. High-molecular-mass substances in resinites as possible precursors of specific hydrocarbons in fossil fuels;van Aarssen,1992
2. Structural elucidation of the basic units of a diterpenoid polymer isolated from fossil resins;van Aarssen;Geochim. Cosmochim. Acta,1994
3. A cadinene polymer in fossil and extant dammar resins as a source for cadinanes and bicadinanes in crude oils from South east Asia;van Aarssen;Geochim. Cosmochim. Acta,1990
4. Occurrence of polycadiene in fossil and recent resins;van Aarssen;Geochim. Cosmochim. Acta,1994
5. A newly discovered polyphenolic substance in seed walls as an alternative source for phenolic moieties in brown coals;van Bergen,1991