Russia · Perm National Research Polytechnic University
SHA1: db967b77c6c640ecbbfad332e953e3d9f868aa14
SHA256: 819749c7f735402eac2a5d3e4cfb9d216c5d7e4eb7264d5c994871a105acf442
image/jpeg
137.15KB
2014-10-09 11:27:18 +0000 UTC