1. Calculation of pollen and spores density in sediments by addition of exotic pollen in known quantities;Benninghoff;Pollen et Spores,1962
2. Cyst formation, sedimentation, and preservation: factors affecting dinoflagellate assemblages in recent sediments from Trondheimsfjord, Norway;Dale;Review of Palaeobotany and Palynology,1976
3. Palynomorph preparation procedures currently used in the paleontology and stratigraphy laboratories, U.S. Geological Survey;Doher;United States Geological Survey Circular,1980
4. The Lentin and Williams index of fossil dinoflagellates 2004 edition;Fensome;American Association of Stratigraphic Palynologists Contributions Series,2004
5. Extraction techniques;Gray,1965