%K Percolation theory, Stochastic ray tracing, Optical ray propagation, Stratified random media %X In this report, ray propagation in stratified semi-infinite percolation lattices consisting of a succession of uniform density layers is considered. The final version of this article is available at the url of the journal PIER: http://www.jpier.org/PIER/ %D 2007 %A Anna Martini %A Luca Marchi %A Massimo Franceschetti %A Andrea Massa %I University of Trento %T Stochastic Ray Propagation in Stratified Random Lattices – Comparative Assessment of Two Mathematical Approaches %L elediasc12433