Limits to the critical raw materials approach by Bram Buijs, Henrike Sievers and Luis A. Tercero Espinoza published in November 2012 Proceedings of the ICE - Waste and Resource Management
Philip Andrews-Speed presented the results of the POLINARES study on raw material criticality at two conferences run jointly by the Stiftung Wissenschaft und Politik and the American Institute for Contemporary German Studies.
International energy and resources policy, with a focus on China