https://doi.org/10.26485/0459-6854/2018/68.2/3 Praca dotyczy zagadnienia postawionego przez V. N. Dubinina, a przedtem w innej postaci przez G. P. Bakhtina.
EN
https://doi.org/10.26485/0459-6854/2018/68.2/3 The paper deals with the following problem stated by V.N. Dubinin and earlier in different form by G.P. Bakhtina.
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.