@article{oai:u-ryukyu.repo.nii.ac.jp:02006981,
 author = {Takaku, Akira},
 issue = {20},
 journal = {琉球大学理工学部紀要. 理学編, Bulletin of Science & Engineering Division, University of Ryukyus. Mathematics & natural sciences},
 month = {Sep},
 note = {Let k be a positive integer and x a real non-principal character (mod k) . Then under the extended Riemann hypothesis we have #{1≦n≦k^<1/4+ε |X ( n ) =-1}> k^<(1/4+ε)/2-s>, [ k≧k＿o(ε, S)] if k is cubefree and #{1≦n≦k^<3/8+ε> |x(n)=-1} ＞k^<(3/8+ε)/2-S>,[k≧k_o(ε,S)] otherwise, whereε and S are any positive real numbers., 紀要論文},
 pages = {5--6},
 title = {Quadratic non-residues on extended Riemann hypothesis},
 year = {1975}
}