Russia · Perm National Research Polytechnic University
SHA1: 83dfb2634ec898f3de966c736f78beb5adc0516b
SHA256: 97f8cd6b1b3a23f4633cbeac0e741458a8bb3608248e170f203b18be8ec8f6b3
image/jpeg
142.77KB
2013-12-13 05:13:24 +0000 UTC