Bytotova S.V. «The population and ontogenesis analysis Papaver chakassicum Peschkovain Koybalskaja steppe of Respublic Khakassia » // 2009. №1 (5) C.5-14
Shishkina Natalia I., Savinykh Natalia P. «Centaurea sumensis Kalen. biomorphology from the perspective of species protection » // Tomsk State University Journal of Biology 2016. №2 (34) C.69-86
