Macdonald, Alison M. (1995). Oceanic fluxes of mass, heat, and freshwater : a global estimate and perspective (Thesis). WHOI Theses. Falmouth, Mass.: Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution. p. 12. doi:10.1575/1912/5620. hdl:1912/5620.
Macdonald, Alison M. (1995). Oceanic fluxes of mass, heat, and freshwater : a global estimate and perspective (Thesis). WHOI Theses. Falmouth, Mass.: Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution. p. 12. doi:10.1575/1912/5620. hdl:1912/5620.
Talley, Lynne D. (Fall 2013). "Reading-Advection, transports, budgets". SIO 210: Introduction to Physical Oceanography. San Diego: Scripps Institute of Oceanography. University of California San Diego. Retrieved August 30, 2014.