From reading the cached article it claims that Minkowsky won in that as the above poster cites that the photon momentum is proportional to the index of refraction "n". However, if that is true then wouldn't the substance move in the opposite direction of motion of the photon to conserve total momentum since the photon momentum is increasing since the index goes from 1 to >1 ?
This is opposite from what the fine article claims.

Just sayin'