@inbook{inbook789cccd5,
title   = {The UNL distinctive features: inferences from a NL-UNL encoverting task},
author = {Martins, Ronaldo Teixeira and Rino, Lucia Helena Machado and Nunes, Maria das Graças Volpe and Oliveira Junior, Osvaldo Novais de},
year = {2005},
publisher = {IPN Graphic Workshop},
journal   = {Universal networking language: advances in theory and applications}
}