LAURINČIKAS, Antanas; MATSUMOTO, Kohji. On estimation of the number of zeros of linear combinations of certain zeta-functions. Lietuvos matematikos rinkinys, [S. l.], v. 38, n. II, p. 43–48 , 1998. DOI: 10.15388/LMD.1998.37693. Disponível em: https://www.journals.vu.lt/LMR/article/view/37693. Acesso em: 16 may. 2025.