WIGHTMAN, A. S. Quantum Field Theory and Analytic Functions of several Complex Variables. The Journal of the Indian Mathematical Society, [S. l.], v. 24, n. 3-4, p. 625–677, 1960. DOI: 10.18311/jims/1960/16936. Disponível em: http://www.informaticsjournals.com/index.php/jims/article/view/16936. Acesso em: 13 may. 2024.