Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) E. B. Bagley and H. J. Duffey,Recoverable Shear Strain and the Barus Effect in Polymer Extrusion,Transactions of the Society of Rheology,0038-0032,Society of Rheology,1970-12-01,14,4,545-553,https://cir.nii.ac.jp/crid/1361137046340025728,https://doi.org/10.1122/1.549178