@article{oai:nagano-nct.repo.nii.ac.jp:00000490,
 author = {上村, 与四郎},
 journal = {長野工業高等専門学校紀要},
 month = {Aug},
 note = {application, The present calendar has defects that the number of days in each month is irregular and there is discrepancy between days and their days of the week, month by month. In order to mend these defects I have contrived a new calendar. The outline of the new calendar is as follows: a week consists of 6 days and a month consists of 30 days, "extra days" are added to the ends of the sixth and the twelfth month. In this paper, I report the charactaristics of this calendar and the scientific grounds from which this calendar is derived.},
 pages = {41--44},
 title = {暦の改革論},
 volume = {21},
 year = {1990}
}