TY  - JOUR 
T1  - Some observations on marine phytoplankton kinetics: 2. The effect of nitrate and ammonium concentrations on the growth and uptake rates of the natural population of Ubatuba region, SP (23ºS, 045ºW)
JO  - Boletim do Instituto Oceanográfico
A1  - Schmidt, Gilda
SN  - 0373-5524
UL  - 10.1590/S0373-55241983000100009
VL  - 32 
Y1  - 1983
PB  - Brasil 
ER  -