“…Our results, as well as our mode of approach to the study of solid-state chemical processes and to their governed control, have been successfully applied not only in our laboratory, but also in the work of other researchers [9,[29][30][31][32]. Nevertheless, however fruitful this approach has proved in studies on topochemical reactions and in solving problems of their governed control, more detailed investigations, carried out first in our laboratory and subsequently in other laboratories, have demonstrated the obvious deficiencies of the method.…”