Russia · Perm National Research Polytechnic University
SHA1: 77955419c3c35fb53b57577263994fe650763e3c
SHA256: cbd970d4c854e0d5c7a7002d94c065ed5d7495f37c4999da2d80570857a65c06
image/jpeg
225.85KB
2017-04-06 10:47:03 +0000 UTC