@article{oai:kanazawa-u.repo.nii.ac.jp:00011564,
 author = {市川, 渡 and Ichikawa, Wataru},
 issue = {2},
 journal = {The science reports of the Kanazawa University = 金沢大学理科報告},
 month = {Jun},
 pages = {223--237},
 title = {The Fossil Diatoms in the Hirazawa Diatomite, Miyagiken, Japan},
 volume = {1},
 year = {1951}
}