<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>32</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">William L. Poulsen</style></author></authors><tertiary-authors><author><style face="normal" font="default" size="100%">Umran S. Inan</style></author></tertiary-authors></contributors><titles><title><style face="normal" font="default" size="100%">Modeling of Very Low Frequency Wave Propagation and Scattering within the Earth-Ionosphere Waveguide in the Presence of Lower Ionospheric Disturbances</style></title></titles><dates><year><style  face="normal" font="default" size="100%">1991</style></year><pub-dates><date><style  face="normal" font="default" size="100%">11/1991</style></date></pub-dates></dates></record></records></xml>