Long-term diazotrophic cultivation of Trichormus sp. IMU26: evaluation of physiological changes related to elevated phycobiliprotein content | SpringerLink
Nostoc commune Vaucher ex Bornet & Flahault - 827 - Biodiversidad Virtual / Peces
File:Nostoc.jpg - Wikipedia
Nostoc - Cyanobacteria - Bacteria - Aquatic life - Photos
Cianobatteri Nostoc , colonie raccolte dopo un temporale ed osservate al microscopio - YouTube