@article{articleba978fe0,
title   = {Observation of regeneration of nitrate, phosphate and silicate during upwelling off Ubatuba, Brazil, 23 S},
author = {Braga, Elisabete de Santis and Müller, T J},
year = {1998},
doi = {10.1016/s0278-4343(98)00002-8}
}