Godfraind, T., Morel, N., & Wibo, M. (1989). Modulation of Dihydropyridine Receptor-sites in Calcium Channels of Vascular Smooth-muscle. New York Academy of Sciences. Annals, 560, 309-311. https://doi.org/10.1111/j.1749-6632.1989.tb24111.x (Original work published 1989)