Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Norisato Kataoka,The distribution of prime ideals in a real quadratic field with units having a given index in the residue class field,Journal of Number Theory,0022-314X,Elsevier BV,2003-08-01,101,,349-375,https://cir.nii.ac.jp/crid/1873398392815001984,https://doi.org/10.1016/s0022-314x(03)00062-3