4Schulenberg F J. Finned elliptical tubes and their application in air-cooled heat exchangers [J] . ASME Journal of Engineering for Industry, 1996, (5): 179-190.
5Schulenberg F J. Finned elliptical tubes and their application in air-cooled heat exchangers. ASME Journal of Engineering for ndustry, 1996, (5) :179-190.
6Schulenberg F J. Finned Elliptical Tubes and Their Application in Air-cooled Heat Exchangers[J].ASME Journal of Engineering for Industry, 1996, (5) : 179-190.