著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL
"Zachmanoglou, E. C.",The decay of solutions of the initial-boundary value problem for the wave equation in unbounded regions : the approach to steady state of solutions of the non-homogeneous problem,,"Dept. of Mathematics, University of California",1962,Technical report,,,,https://cir.nii.ac.jp/crid/1130000796224423808