Geolocalitzar la pṛpia infraestructura des de dins <a href="http://geospatial.blogs.com/geospatial/2011/12/au-hungarian-state-railways-geolocates-135-million-objects-to-5-cm-precision-in-14-months.html">http://geospatial.blogs.com/geospatial/2011/12/au-hungarian-state-railways-geolocates-135-million-objects-to-5-cm-precision-in-14-months.html</a><br>
<br>Raf<br>