Here are paper models of DT-75 type tractor, dozer and special machine. Some scales available, Smalls are H0, medium - 1:72 - 76, and large - 1:48 - 50. The papercrafts are created by Alexander Lebedev, the Tank-trailers by Fyodor Bohonov and conversion by Max Krylow. The DT-75M is a Russian built crawler tractor from the Volgograd Tractor Factory that was marketed in Britain by Belarus.
You can download the papercrafts templates here: Russian DT-75M Tractor, Dozer and Special Machine Free Paper Model Download