@article{journal,
author = {Hidalgo de Trucios, S. J.},
title = {World status of the Great Bustard (Otis tarda) with special attention to the Iberian peninsula populations},
year = {1990},
volume = {14},
pages = {167--180},
journal = {Miscel·l{\`a}nia Zool{\`o}gica},
keywords = {Great Bustard, Otis tarda, Status, Distribution, Census, Iberian peninsula}
}