Churro, C.I., Carreira, C.C., Rodrigues, F.J., Craveiro, S.C., Calado, A.J., Casteleyn, G. & Lundholm, N. (2009). Diversity and abundance of potentially toxic Pseudo-nitzschia Peragallo in Aveiro coastal lagoon, Portugal, and description of a new variety, P. pungens var. aveirensis var. nov. Diatom Research, 24(1): 35-62