It is one of purposes of this memorandum to refute this notion, although it must conceded that the results observed in practice seem to support this contention.
Reference:
Van Doornum, G.A.W. & Van Doornum, G. 1965. Smokeless combustion of bituminous coal small appliances. http://hdl.handle.net/10204/12865 .
Van Doornum, G. A. W., & Van Doornum, G. (1965). Smokeless combustion of bituminous coal small appliances Retrieved from http://hdl.handle.net/10204/12865
Van Doornum, G.A.W, and GAW Van Doornum Smokeless combustion of bituminous coal small appliances. 1965. http://hdl.handle.net/10204/12865
Van Doornum GAW, Van Doornum G. Smokeless combustion of bituminous coal small appliances. 1965 [cited yyyy month dd]. Available from: http://hdl.handle.net/10204/12865