Troush, N.N., and A.V. Kuzmina. “Option Pricing by Esscher Transforms in the Cases of Normal Inverse Gaussian and Variance Gamma Processes”. Studia Informatica. System and information technology 16, no. 1-2 (May 11, 2019): 35–44. Accessed May 7, 2024. https://czasopisma.uph.edu.pl/studiainformatica/article/view/472.