PEÑA – Algunos aspectos del desarrollo de la lógica en el Brasil --------------------

p.09

UYEMOV – The language of ternary description as a logic, I -----------------------

p.25

BÉZIAU – Negation: what it is & what it is not -------------------------------------

p.37

MACIEL & FERREIRA – Decay of solutions of some nonlinear hyperbolic-parabolic Equations --------------------------------------------------------------------------

p.45

TO FU MA – Remarks on nontrivial solutions of a resonant elliptic problem ---------

p.51

COUSIN – On a nonlinear model for vibrations of beams in unbounded domanis ---

p.55

CLARK – Einstein – Podolski – Rosen paradox: a mathematically Complete exposition ----------------------------------------------------------------------------

p.67

PEÑA – On some classes of operators derived from iterated Riemann – Liouville Fractional integrals ---------------------------------------------------------------

p.83