Yousefi E. A MIXED PROBLEM FOR THE FOURTH ORDER DEGENERATE ORDINARY DIFFERENTIAL EQUATION. Proc. YSU A: Phys. Math. Sci. [Internet]. 2010 Apr. 26 [cited 2024 Sep. 20];44(2 (222):16-9. Available from: https://pub.ysu.am/index.php/proceedings-phys-math/article/view/vol44_no2_2010_pp016-019