Phenomenology and logical reasoning in introductory physics courses / A.B.Arons.-- Momentum propagation by

traveling waves on a string / Reuben Benumof.-- Group theoretic approach to the Schwarzschild solution /

J.M.Wilkes, J.D.Zund.-- Effect of the continuum states in seccond order perturbation theory : An example/

M.Coronado y otros.-- Science and society test VI : Energy economics / David W.Hafemeister.-- Advanced

undergraduate laboratory experiment in inelastic electron tunneling spectroscopy / H.W.White, R.J.Graves.--

Off the mass shell scattering amplitude in a two particle potencial model / F.A.B. Coutinho.-- Quantum

mechanical scattering in two dimensions / I. Richard Lapidus.-- Advaned laboratory NMR séctrp,eter with

applications / Clovis Biscegli y otros.-- Magnetic and electric fields of rotating charge distributions /

James S. Marsh.-- Approximate energy levels and sizes of bound quantum systems / H.A.Gersch, C.H.Braden.--

Influence of air drag on the optimal hand launching of a small, round projectile / J. A. Zufiria, J.R.

Sanmartín.-- Bohm Aharonov effect : The quantum mechanics of the electrical transformer / M. Danos.--

Students`preconceptions in introductory mechanics / John Clement.-- Fundamentals of zoological scaling /

Herbert Lin.-- Regression line analysis / K.S. Krane, L. Schecter.-- Indution transducer for recording the

velocity of a glider on a air trak / P. Rochon, N. Gauthier.-- General relativistic trajectories using small

computers / Susan K. Graves.-- Powder diffraction patterns on Tel-X-Ometer 80 / Peter Russo.-- Observing the t

Feinberg.