BURTNYAK, I.; MALYTSKA, H. Structure of the Fundamental Solution of Cauchy Problem for Kolmogorov Systems of Second-Order. Journal of Vasyl Stefanyk Precarpathian National University, [S. l.], v. 2, n. 4, p. 9–22, 2015. DOI: 10.15330/jpnu.2.4.9-22. Disponível em: https://scijournals.pnu.edu.ua/index.php/jpnu/article/view/2636. Acesso em: 3 jul. 2024.