Aspinall, W. P.2010-09-262010-09-262010-09-26https://hdl.handle.net/2139/8464This letter to the editor is dated July 21, 1975The use of the Omega low frequency navigational system as it relates to seismological studies is explained.enNavigational systemSeismological studiesOn the use of the Omega navigational system as a high quality time reference for seismological studiesArticle