Osovetskiy, B. . (2014). Ta-Nb AND TR-MINERALIZATION IN MESOZOIC-CENOZOIC SEDIMENTS OF THE UPPER KAMA BASIN AND PERSPECTIVES OF EXPANDING AND DEVELOPMENT OF MINERAL RESOURCES IN THE REGION. Perm Federal Research Centre Journal, 3, 96-108. https://journal.permsc.ru/index.php/pscj/article/view/PSCJ2013n3p9