In this brief comment we show that, contrary to previous claims (Bartelt and Evans), the asymptotic behaviour of the Kashchiev model of polynuclear growth is trivial in all spatial dimensions, and therefore lies outside the Kardar-Parisi-Zhang universality class.
Newman, T. J., & Volmer, A. (1996). Absence of non-trivial asymptotic scaling in the Kashchiev model of polynuclear growth. Journal of Physics A: Mathematical and General, 29(9), 2285-2289. https://doi.org/10.1088/0305-4470/29/9/038