Hansen, Gayle I., Takeaki Hanyuda, and Hiroshi Kawai. Benthic Marine Algae on Japanese Tsunami Marine Debris ? a Morphological Documentation of the Species. Part 1 ? The Tsunami Event, the Project Overview, and the Red Algae In ORESU-H. Vol. no.17-001. Corvallis, Or.: Oregon State University Libraries.  The Scholars Archive,, 2017.

Hansen, Gayle I., Takeaki Hanyuda, and Hiroshi Kawai. Benthic Marine Algae on Japanese Tsunami Marine Debris ? a Morphological Documentation of the Species. Part 2 ? The Brown Algae In ORESU-H. Vol. no.17-002. Corvallis, Or.: Oregon State University Libraries.  The Scholars Archive,, 2017.

Hansen, Gayle I., Takeaki Hanyuda, and Hiroshi Kawai. Benthic Marine Algae on Japanese Tsunami Marine Debris ? a Morphological Documentation of the Species. Part 3. The Green Algae and Cyanobacteria. In ORESU-H. Vol. no.17-003. Corvallis, Or.: Oregon State University Libraries.  The Scholars Archive,, 2017.