Russia · Perm National Research Polytechnic University
SHA1: 4a868023d529b3ef75df78accb3fb186d53d4137
SHA256: b94257e607f2cf7229b20eafdedd48912565f876289a663fa84eb7c22380c4ed
image/jpeg
181.76KB
2017-11-17 06:36:35 +0000 UTC