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石谷 清幹. "〔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〕." Journal of the Society of Mechanical Engineers 56.419 (1953) 898-899