@article{oai:u-ryukyu.repo.nii.ac.jp:02006980,
 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 (n) a real non-principal character (mod k ). Let ε be any positive number, then we have Σ^^t__<n=1> x(n) n^<-1> > 0, provided k≧k o (ε) and t≧[ k 1/4+^ε] + 1, if k is cubefree and t≧[k 3/8+^ε] + 1, otherwise., 紀要論文},
 pages = {1--3},
 title = {FINITE PART OF L (1, x)},
 year = {1975}
}