Pronunciation of the name "<a href="https://en.wikipedia.org/wiki/Ivan_Matveyevich_Vinogradov" class="extiw" title="w:Ivan Matveyevich Vinogradov">Ivan Matveyevich Vinogradov</a>".
<a href="//commons.wikimedia.org/w/index.php?title=User:NaSP&amp;action=edit&amp;redlink=1" class="new" title="User:NaSP (page does not exist)">NaSP</a>
<span class="int-own-work" lang="en">Own work</span>