Ballard RD, Francheteau J. Geological processes of the mid-ocean ridge and their relationship to sulfide deposition. In: Rona PA, Bostroem K, Laubier L, Smith KL, editors. Hydrothermal processes at seafloor spreading centers. New York, N.Y.: Plenum Press; 1983. p. 47-62. (NATO conference series. IV, Marine sciences).