Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) IKEBE Nobunori,ON ELLIPTIC BOUNDARY VALUE PROBLEMS WITH DISCONTINUOUS COEFFICIENTS,"Memoirs of the Faculty of Science, Kyushu University. Series A, Mathematics",0373-6385,"Department of Mathematics, Faculty of Science, Kyushu University",1967,21,2,167-184,https://cir.nii.ac.jp/crid/1390282680251460480,https://doi.org/10.2206/kyushumfs.21.167