Akhmedov , M., и R. Kadirov. «INTIAL BOUNDARY VALUE PROBLEM FOR THE LINEARIZED KDV EQUATION ON STAR GRAPH WITH ONE SEMI-INFINITE AND TWO BOUNDED BONDS». Центрально азиатский журнал STEM, т. 1, вып. 1, октябрь 2021 г., сс. 23-29, https://stem.kiut.uz/index.php/journal/article/view/7.