〔355〕管形空気予熱器の諸問題〔E.F.Rothemich and G.Parmakian, A.S.M.E., Trans., 1953-7, Vol.75, No.5, p.723〜728, 図17, 表5〕

石谷 清幹
1953 Journal of the Society of Mechanical Engineers  
doi:10.1299/jsmemag.56.419_898_5 fatcat:zvhu6opotze3fbzfn6rwcvucey