Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleUse of a key point in the F layer for N(h) analysis of ionograms.AuthorsGulyaeva, T. L.PublicationRadio Science, 1981, Vol 16, Issue 1, p135ISSN0048-6604Publication typeArticleDOI10.1029/RS016i001p00135