Semin Ю. Н., and Pushkarev И. А. “Model Implementation of the System of Estimating the Independent Work of Students and Pupils in Educational Process”. Vestnik IzhGTU Imeni M.T. Kalashnikova, no. 1, Mar. 2014, pp. 162-5, https://izdat.istu.ru/index.php/vestnik/article/view/2533.