“Fractional Sobolev space with variable exponents: Study of Kirchhoff problem by Berkovits degree theory”, NS, vol. 31, no. 4, pp. 1135–1147, Nov. 2024, Accessed: Apr. 16, 2026. [Online]. Available: https://www.nonlinearstudies.com/index.php/nonlinear/article/view/3494