Canvis

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* [http://www.lightpollution.it/istil/index.html ''Istituto di Scienza e Tecnologia dell'Inquinamento Luminoso -ISTIL-'']
 
* [http://www.lightpollution.it/istil/index.html ''Istituto di Scienza e Tecnologia dell'Inquinamento Luminoso -ISTIL-'']
 
* [http://www.starlight2007.net ''Iniciativa Starlight'']
 
* [http://www.starlight2007.net ''Iniciativa Starlight'']
* [http://itc.napier.ac.uk/i-Petition/bundestag/viewpetition.asp?PetitionID=565 There was a petition available in Germany against light pollution until 27 December 2007]
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* [http://www.arcosingenieros.es/real-decret-1890-2008-eficiencia-energetica.html REAL DECRET 1890/2008]: Normativa espanyola d'[[eficiència energètica]] de l'[[allumenat públic]].
   
* [http://www.noticiascientificas.info/2011/11/contaminacion-luminica.html Efectes de la contaminació lluminica]
 
* [http://www.noticiascientificas.info/2011/11/contaminacion-luminica.html Efectes de la contaminació lluminica]