Kosov, Michael Evgenievich, Ravil Gabdullaevich Akhmadeev, Vladimir Mikhailovich Smirnov, Sergey Yuryevich Popkov, Nataliya Sergeevna Shmigol, e Alexander Yurievich Chernov. “Choosing the Investment Business Model for the Energy Industry”. Amazonia Investiga 8, no. 20 (junho 25, 2019): 544–558. Acessado novembro 14, 2026. https://www.amazoniainvestiga.info/index.php/amazonia/article/view/181.