Kälin and Bernoulli, 1984
From dinoflaj3
Kälin, O. and Bernoulli, D., 1984: Schizosphaerella Deflandre and Dangeard in Jurassic deeper-water carbonate sediments, Mazagan continental margin (Hole 547B) and Mesozoic Tethys. In: Hinz, K. et al., Deep Sea Drilling Project, Washington, Initial Reports, v.79, p.411-435.