Toxic Blue Green Algae Awareness, 07 Mar 2019 Harmful Cyanobacterial Blooms: Causes, Consequences, and Controls. Authors Hans W. Paerl, Timothy G.
Toxic Blue Green Algae Awareness, 02 Sep 2014 http://link.springer.com/article/10.1007/s00248-012-0159-y#page-1