Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Yoshihara Keitaro,Reminiscences of the Early Days of Ultrafast Spectroscopy,Molecular Science,1881-8404,Japan Society for Molecular Science,2011,5,1,A0037,https://cir.nii.ac.jp/crid/1390282680258440576,https://doi.org/10.3175/molsci.5.a0037