%0 Journal Article %T Modification of the methodology for ssessing the viability of introduced species in accordance with the conditions of dry steppe zone of the Orenburg region %A Fedorova, D.. %A Nazarova, N.. %A Kuhlevskaya, Y.. %K %J Bulletin of Nizhnevartovsk State University %D 2021 %N %P 5 %I Nizhnevartovsk State University