Alcántara Bode, Julio, y J. Yngvason. «Algebraic Quantum Field Theory and Noncommutative Moment Problems I». Pro Mathematica 3, no. 5-6 (mayo 21, 1989): 65–81. Accedido febrero 19, 2026. https://revistas.pucp.edu.pe/index.php/promathematica/article/view/6063.