Bondarenko, Natalia Pavlovna. “An Inverse Problem for the Non-Self-Adjoint Matrix Sturm-Liouville Operator”. Tamkang Journal of Mathematics 50, no. 1 (March 30, 2018): 71–102. Accessed May 7, 2024. https://journals.math.tku.edu.tw/index.php/TKJM/article/view/2735.