UPPER CRETACEOUS RHYOLITIC ASH BEDS FROM THE NOVAYA SIBIR ISLAND (NEW SIBERIAN ISLANDS) Article Kostyleva V., Shchepetova E., Kotelnikov A. GFF. Taylor and Francis Ltd.. Vol. 141. 2019. P. 233-240
INTERNATIONAL JOURNAL OF ENGINEERING AND ADVANCED TECHNOLOGY Journal Blue Eyes Intelligence Engineering and Sciences Publication.