1. Solutions for critical raw materials under extreme conditions: a review;Grilli;Materials,2017
2. Study on the review of the list of critical raw materials - Critical Raw Materials Factsheets, Brussels. 〈https://publications.europa.eu/en/publication-detail/-/publication/7345e3e8-98fc-11e7-b92d-01aa75ed71a1/language-en92d-01aa75ed71a1/language-en〉 (Last Accessed 7 October 2018) 2017.
3. Communication from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committe of the Regions on the 2017 list of Critical Raw Materials for the EU, European Union, 2017. 〈http://eur-lex.europa.eu/legal-content/EN/ALL/?Uri=COM:2017:0490:FIN〉 (Last Accessed 7 October 2018).
4. Application of hardmetals as thermal spray coatings;Berger;Int. J. Refract. Met. Hard Mater.,2015
5. Coatings by thermal spray;Berger,2014