PALIOKAS, Eugenijus. Riemann–Hilbert boundary value problem for multidimensional elliptic systems of equations. Lietuvos matematikos rinkinys, [S. l.], v. 46, n. spec., p. 58–63, 2023. DOI: 10.15388/LMR.2006.30573. Disponível em: https://www.zurnalai.vu.lt/LMR/article/view/30573. Acesso em: 17 nov. 2025.