Below is the ascii version of the abstract for 02-78. The html version should be ready soon.

F. Bentosela, M. Tater
Scattering by a slab: an exact calculation
(851K, LaTeX 2e with 5 PS Figures)

ABSTRACT.  The model consists of an infinite number of point interactions 
distributed periodically on a finite number of parallel planes. Exact 
formulas for the transmission coefficients are given. Numerical 
behavior is presented, first in the case the incident plane wave 
has a wave vector perpendicular to the planes and then for some 
tilted directions. For some values of the interaction parameter the 
reflection coefficient is close to one for a relatively large set of 
incident wavelengths.