@inproceedings{inproceedings91808ddc,
title   = {Efficiency of nitrogen fertilizers 'ANTPOT.15 N'-labelled in an ultisol of brazilian amazon},
author = {Alfaia, S S and Giraud, G and Jacavin, F and Muraoka, T and Ribeiro, G A},
year = {1996},
booktitle   = {International Symposium on Plant Soil Interactions at Low Ph}
}