@article{oai:hakodate-u.repo.nii.ac.jp:00000388,
 author = {中村, 和之},
 issue = {1},
 journal = {函館大学論究},
 month = {Oct},
 note = {During the 13th and 14th centuries, the water in the lower Amur basin began 
to freeze. This climatic event lasted from the eighth month of the lunar 
calendar until the fourth or fifth month of the following year when thawing 
began. Such records are found in the Chinese historical sources of the 13th and 
14th centuries. Compared with early 20th century data, it can be seen that the 
climate in the 13th and 14th centuries was cold. The example shows evidence 
of cooling in the high latitudes of Eurasia.},
 pages = {59--69},
 title = {13、14 世紀のアムール河下流域の寒冷化についての事例提供},
 volume = {53},
 year = {2021},
 yomi = {ナカムラ, カズユキ}
}