OBADI, Saleh Mothana - OTHMANOVÁ, Soňa - ABDOVÁ, Mariam. What are the causes of high crude oil price? Causality investigation. - Registrovaný: Scopus. In International Journal of Energy Economics and Policy : [medzinárodná konferencia, Nevsehir, Turecko, 16.-18. máj 2013]. - [s.l.] : [s.n.], 2013. ISSN 2146-4553, 2013, vol. 3, special issue, s. 80-92 [online]. Dostupné na : <www.econjournals.com>