H. Arakawa

发表

Remarkable winters in Japan from the seventh century

H. Arakawa, 1955 .

Fujiwhara on five centuries of freezing dates of Lake Suwa in the Central Japan

H. Arakawa, 1954 .

Twelve centuries of blooming dates of the cherry blossoms at the city of Kyoto and its own vicinity

H. Arakawa, 1955 .