1. Réflectance et fluorescence des organoclastes du Toarcien du Bassin Paris en fonction de la profondeur et de la température;Alpern;Rev. Inst. Fr. Pét.,1978
2. Geochemical relationship between petroleum and coal;Durand,1984
3. Autofluorescence of fossil pollen and spores with special reference to age determination and coalification;Gijzel;Leidse Geo. Meded.,1967
4. Polychromatic UV—fluorescence microphotometry of fresh and fossil plant substances, with special reference to the location and identification of dispersed organic material in rocks;Gijzel,1975