Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
NISHIWADA Kimimasa,On necessary conditions for Cauchy problems to be microlocally well posed,Japanese journal of mathematics. New series,0289-2316,The Mathematical Society of Japan,1980,6,1,1-44,https://cir.nii.ac.jp/crid/1390282680235510400,https://doi.org/10.1007/s11537-011-1035-0