On the inconsistency of Porsch-R\"oseler cutoff theory. (reply to   [arXiv:1208.1166v2])
  It is shown that the conclusion [arXiv:1208.1166v2] made by Porsch and R\"oseler that their cutoff polaron theory transforms to Tulub theory is erroneous. The results of the work by Klimin and Devreese based on the results of Porsch and R\"oseler theory are erroneous too. 
V. D. Lakhno
cond-mat.other