Chapters by Dr. E. Walter Helbling

• Book Chapter Long-Term UVR Effects Upon Phytoplankton Natural Communities of Patagonian Coastal Waters
  by Silvana R. Halac, Virginia E. Villafañe, Rodrigo J. Gonçalves and E. Walter Helbling in the book "Biomass and Remote Sensing of Biomass" edited by Islam Atazadeh, ISBN 978-953-307-490-0, InTech, September 9, 2011