@phdthesis{oai:tsukuba.repo.nii.ac.jp:00008473,
 author = {三河, 寛 and Mikawa, Hiroshi},
 month = {},
 note = {1990},
 school = {筑波大学, University of Tsukuba},
 title = {Contributions to prime number theory -- gaps between primes -},
 year = {1991}
}