“ Some observations on the kinetics of marine phytoplankton: 1 The influence or nitrate and ammonium concentrations on the growth velocity and assimilation of these nutrients in the diatom Phaeodactylum tricornutum (Bohlin) ” (1982) Boletim do Instituto Oceanografico, 31(2), pp. 13–27. doi:10.1590/S1679-87591982000200004.