by Kalinina, Natalia V, Solovyova, Alla V, Popova, Tatyana A, Levina, Irina D, Gorbunova, Larisa N, Ignatov, Sergey B
Published in Cypriot journal of educational sciences (01.10.2020)

by Ignatov, Sergey B.
Published in Obrazovanie i nauka (08.07.2015)

by Sergey B. Ignatov
Published in Obrazovanie i nauka (01.07.2015)

by Ignatova, Valentina A., Ignatov, Sergey B.
Published in Tyumen State University Herald. Humanities Research. Humanitates (2017)

by Kalinina, Natalia V, Solovyova, Alla V, Popova, Tatyana, Levina, Irina D, Gorbunova, Larisa N, Ignatov, Sergey B
Published in Cypriot journal of educational sciences (2020)

by Kaigorodova, Gulnara, Kosarenko, Nikolay, Shapovalov, Dmitriy, Sayfutdinova, Guzel, Sharonov, Ivan, Ignatov, Sergey, Kartushina, Irina
Published in Eurasian journal of analytical chemistry (01.01.2017)