Olonova Marina V., Shavrova Polina D., Olonova Marina V., Shavrova Polina D. «The population variability ofthe feather grasses section Stipa (Poaceae) in the mountain districts of the South of WesternSiberia» //  2009. №2 (6) C.17-28
                                                    
                        Olonova Marina V., Gudkova Polina D., Olonova Marina V., Gudkova Polina D. «Micromorphology of abaxial epidermis of siberian Stipa L.leaf blades» //  2012. №3 (19) C.33-45