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Complex Variables and Elliptic Equations (Acceso UNAM - Taylor and Francis Online) Vol. 1, No. 1, 1982–
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Comptes Rendus de L´Academie des Sciences Série 2b - Mécanique, physique, chimie, astronomie (Gratis-Gallica) 1991-1996
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Czechoslovak Journal of Physics (Acceso UNAM - SpringerLink) Vol. 1, No. 1, 1952 – Vol. 56, No. 12, 2006