Arefiev V.P., Filipenko N.M., Mikhalchuk A.A., Novoseltseva D.A. «Clusterization of directions of training at russian technical college in factorial space of entrance examenations» // Open and distance education 2015. №3(59) C.69-76
Efremov Stanislav P., Avrova Ada F., Efremova Tamara T., Melent'eva Nadejda V. «Altitudinal differentiation of the acid-base properties of the river valley peat soils of Kuznetsk Alatau» // Tomsk State University Journal of Biology 2018. № 41 C.135-155
