"Farol do Esteiro". AUTORIDADE MARÍTIMA NACIONAL. Retrieved 18 September 2017.
arlhs.com
wlol.arlhs.com
"ARLHS World List of Lights (WLOL)". Identification Codes. Merchantville, New Jersey: Amateur Radio Lighthouse Society/The Weidner Publishing Group. 2003. Retrieved 18 August 2017.