Montresor et al., 1997
From dinoflaj2
Montresor, M., Janofske, D. and Willems, H., 1997: The cyst-theca relationship in Calciodinellum operosum emend. (Peridiniales, Dinophyceae) and a new approach for the study of calcareous cysts. Journal of Phycology, v.33, p.122-131.
