Skip to search Skip to main content

Monthly Catalog 1895-1976

  • Bookmarks 0
  • History
  • Login

    Cite

    JPRS (NY) reports. 724. Results of investigations of outer region of ionosphere according to observations of radio signals of 1st artificial earth satellite; [by Ya. L. Al'pert, E. F. Chudusenko, B. S. Shapiro].