https://www.elconfidencial.com/empresas/2018-05-01/recorte-renovables-arbitraje-triodos-bank-inversores-extranjeros_1557599
https://globalarbitrationreview.com/article/1169149/czech-republic-wins-second-solar-case (requires subscription)
http://www.idae.es/ca/node/13181
http://www.idae.es/ca/file/13787/download?token=0OHe25FK