1. Palynology of modern sediments, Gulf of California and environs;Cross;Bull. Am. Assoc. Petrol. Geologists,1965
2. Dissémination des pollens et des spores par les eaux courantes;Federova;Traveaux Inst. Géogr. (Acad. Sci. U.S.S.R.), 52 (Données sur la géomorphologie et la paléogéographie d'U.R.S.S.),1952
3. Palynological investigation of a core from the Biscay Abyssal Plain;Groot;Science,1963
4. Groot, J. J., Groot, C. R., Ewing, M., Burckle, R. and Conally, J. R., in press. Spores, pollen, diatoms and provenance of the Argentine Basin sediments. Symposium on the Quaternary History of the Ocean Basins.
5. Vegetational studies at Semerwater;Ingram;The Naturalist,1959