Russia · Perm National Research Polytechnic University
SHA1: eb87effc2e15d5f342b18eb57f7670cc6ec834b1
SHA256: adc9839a456f32e55e4e2cb295c94f68057297613c9ee22e6c26dcf53b079978
image/jpeg
210.36KB
2014-07-01 09:06:21 +0000 UTC