RIO GRANDE PSP www.rockscience.com/hoek/corner/6_The_Rio_Grande_project_-_Argentina.pdf
DIGA DI ARCICHIARO web.tiscali.it/DigadiArcichiaro
RIO GRANDE PSP http://es.wikipedia.org/wiki/Complejo_Hidroeléctrico_Río_Grande
BELES HPP
http://en.wikipedia.org/wiki/Beles_Hydroelectric_Power_Plant
GIBE HPP
http://en.wikipedia.org/wiki/Gilgel_Gibe_III_Dam
GIBE II HPP
http://en.wikipedia.org/wiki/Gilgel_Gibe_II_Power_Station
GIBE III - NATIONAL GEOGRAPHIC, MARCH 2010 http://ngm.nationalgeographic.com/
GIBE III - BBC MARCH 2009 http://news.bbc.co.uk/2/hi/in_depth/7937480.stm
BUMBUNA - WORLD BANK WEB SITE http://web.worldbank.org
ITALIAN COMMITTEE OF LARGE DAMS www.itcold.it
APPASSIONATI ITALIANI DI DIGHE www.progettodighe.it
GEORISORSE - GEOPHYSICAL INVESTIGATIONS FOR DAMS www.georisorse.it
INTERNATIONAL LAW FIRM - STUDIO AVV. F. PIETRANGELI www.avv-f-pietrangeli.net