TY  - SER
AU  - Fernandes,L.F.
AU  - Procopiak,L.K.
TI  - Observations on valve structure of Navicula directa (Wm. Smith)Ralfs in pritchard and Navicula glaciei V. Heurck from rocky substrates in Antartic peninsula
KW  - ALGA
KW  - TAXONOMIA VEGETAL
KW  - MICROALGA
KW  - MORFOLOGIA VEGETAL
ER  -