Smith, Walker O Jr (2003): Nano and microplankton abundance and carbon biomass. United States JGOFS Process Study Data 1989-1998; CD-ROM volume 1, version 2, Woods Hole Oceanographic Institution, USA: U.S. JGOFS Data Management Office
Smith, Walker O Jr: Methods for nano- and microplankton counts. US JGOFS (Joint Global Ocean Flux Study) Data System, http://store.pangaea.de/Projects/JGOFS/US/SouthernOcean/Smith-nano.htm