1. Analytical prediction of superimposed free and forced convection in a vertical pipe;Martinelli;University of California, Publications in Engineering,1942
2. The mathematical theory of heat transfer in circular, vertical tubes with combined forced and free convection (in Russian);Ostroumov;Zhurnal Tekjnicheskoi Fizki,1950
3. Combined forced and free laminar heat transfer in vertical tubes with uniform internal heat generation;Hallman;Trans. ASME,1956
4. Effect of heat transfer on flow field at low Reynolds numbers in vertical tubes;Hanratty;Industrial and Engineering Chemistry,1958
5. The superposition of natural and forced convection at low flow rates in a vertical tube;Brown;Forschung auf dem Gebiete des Ingenieurwesens,1960