http://globalarbitrationreview.com/benchmarking/gar-100-10th-edition/1136170/homburger (requires subscription)
https://www.iareporter.com/articles/investigation-as-new-cases-emerge-under-islamic-investment-treaty-initial-viability-of-claims-seems-to-hinge-on-willingness-of-respondents-to-appoint-arbitrators/ (requires subscription)