@TechReport{A.Martinez1998,
author="A. Martinez
and Jordi Vitria",
title="Visual annotation for mobile robot navigation",
year="1998",
optnote="OR;MV",
optnote="exported from refbase (http://158.109.8.37/show.php?record=535), last updated on Fri, 03 Feb 2012 19:54:23 +0100"
}