Russia · Perm National Research Polytechnic University
SHA1: 868ec590c8e0e0a39f4eaee3701c58b12a82aad2
SHA256: 41ee0799edcbaaee15a071fb64ce75f507385c35d8f190bc21436e8b9bb4ec44
image/jpeg
184.00KB
2017-11-17 06:36:36 +0000 UTC