OLIVEIRA, Vládia Pinto Vidal de; 						CARRASCO, Carlos Gil de.
 HIERARCHY OF HOMOGENEOUS LANDSCAPES UNITIES: the example of  uruburetama massif, brazilian semi-arid region (ceará - brazil).
<strong>Mercator</strong>, Fortaleza, v. 2, n. 3, nov. 2008.
ISSN 1984-2201.
Available at: &lt;<a href="http://www.mercator.ufc.br/mercator/article/view/170" target="_new">http://www.mercator.ufc.br/mercator/article/view/170</a>&gt;. Date accessed: 04 nov. 2025.
doi: <a href="https://doi.org/10.4215/rm.v2i3.170">https://doi.org/10.4215/rm.v2i3.170</a>.