@article{Cox2018, author = "Joel Cox and Javier GarcĂ­a de Abajo", title = "{3309177.pdf}", year = "2018", month = "4", url = "https://opticapublishing.figshare.com/articles/journal_contribution/3309177_pdf/5968966", doi = "10.6084/m9.figshare.5968966.v2" }