Source
https://www.mindat.org/loc-14569.html, https://www.boliden.com/globalassets/operations/exploration/projects/resources-and-reserves-laver-2018-12-31.pdf, https://www.northsweden.eu/english/news/2015/boliden-one-of-the-worlds-largest-mining-and-smelting-companies/#:~:text=Boliden%20operated%20a%20copper%20mine,new%20discovery%20found%20and%20mapped.