@article{oai:nagoya.repo.nii.ac.jp:00026939,
 author = {Kenmoku, Masakatsu and Okamoto, Yuko and Shigemoto, Kazuyasu},
 issue = {2},
 journal = {Physical Review D},
 month = {Jul},
 note = {We study a generalized Einstein theory with the following two criteria: (i) on the solar scale, it must be consistent with the classical tests of general relativity; (ii) on the galactic scale, the gravitational potential is a sum of Newtonian and Yukawa potentials so that it may explain the flat rotation curves of spiral galaxies. Under these criteria we find that such a generalized Einstein action must include at least one scalar field and one vector field as well as the quadratic term of the scalar curvature.},
 pages = {578--582},
 title = {Generalized Einstein theory on solar and galactic scales},
 volume = {48},
 year = {1993}
}