Keupp, 1984
From dinoflaj2
Keupp, H., 1984: Revision der kalkigen Dinoflagellaten-Zysten G. Deflandre, 1948. A restudy of the calcareous dinoflagellate cysts established by G. Deflandre, 1948. Paläontologische Zeitschrift, v.58, no.1-2, p.9-31.
