@article{oai:tohoku.repo.nii.ac.jp:00136813,
 author = {井頭, 昌彦},
 journal = {思索, SHISAKU},
 month = {Oct},
 note = {紀要類（bulletin）},
 pages = {221--247},
 title = {「プラグマティックな自然主義」と3つの課題},
 volume = {47},
 year = {2014}
}