<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Robert A. Helliwell</style></author><author><style face="normal" font="default" size="100%">Neil M. Brice</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Very Low Frequency Emission Periods and Whistler Mode Group Delays</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Geophysical Research</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">1964</style></year><pub-dates><date><style  face="normal" font="default" size="100%">nov</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">69</style></volume><pages><style face="normal" font="default" size="100%">4704-4708</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><reprint-edition><style face="normal" font="default" size="100%">0051</style></reprint-edition></record></records></xml>