@inproceedings{inproceedings394f33d7,
title   = {Upper tropospheric voiticity and the olr structure over South America},
author = {Carvalho, A M G and Silva Dias, Pedro Leite da},
year = {1989},
publisher = {American Meteorological Society},
booktitle   = {International Conference on Southern Hemisphere Meteorology and Oceanography}
}