1969 / 1-2. szám G. Marx: Hadron Spectroscopy Analyticity, Regge Poles and Conspiracy A. O. Barut: Implications of the O(4.2) Model of Strong Interactions for Regge Pole and High Energy Phenomenology G. Bisiacchi - G. Calucci - C. Fronsdal: On the Infinite Component Wave Equations P. Surányi: Group Theoretical Description of Relativistic Scattering Near Zero Momentum Transfer P. Di Vecchia - F. Drago: Analyticity, Factorization and Lorentz Symmetry G. L. Tindle: Regge Families and Lorentz Symmetry K. Szegő - K. Tóth: Pi-N Resonance Width in the Broken SL(2, C) Model F. E. Low: The Multiperipheral Model C. Goebel: The Veneziano Form ...