Y. Sitenko: Vacuum Polarization Effects in the Cosmic String Background and Primordial Magnetic Fields in the Universe By mmilan | May 8, 2013 - 11:32 am |May 8, 2013 Presentations Y. Sitenko: Vacuum Polarization Effects in the Cosmic String Background and Primordial Magnetic Fields in the Universe from SEENET-MTP Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Bookmark the permalink.