S. Banerjea and C. Kar, “On waves due to a line source in front of a vertical wall with a gap”, Arch. Mech., vol. 50, no. 5, pp. 917–926, Jan. 1998, Accessed: Jan. 17, 2026. [Online]. Available: http://am.ippt.gov.pl/index.php/am/article/view/v50p917