Raju, M.V.S., and Bernard De Vries. “A Report of the Occurrence of a Blue-Green Alga, Anabaena, in Cells of Green Alga, Rhizoclonium”. Blue Jay 55, no. 1 (March 1, 1997). Accessed April 25, 2024. https://bluejayjournal.ca/index.php/bluejay/article/view/5386.