Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) R. Koningsveld and C. A. F. Tuijnman,On viscosity‐molecular weight relations. I. influence of the molecular weight distribution,Die Makromolekulare Chemie,0025-116X,Wiley,1960-01,38,1,39-43,https://cir.nii.ac.jp/crid/1360292619514102912,https://doi.org/10.1002/macp.1960.020380104