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2. Studies on the voltinism in the silkworm, Bombyx mori L., with special reference to the organs concerning determination of voltinism (a preliminary note);Hasegawa,1951
3. Studies on the voltinism in the silkworm, Bombyx mori L. III. Organs concerning determination of voltinism;Hasegawa;J. seric. Sci., Tokyo,1952
4. The diapause hormone of the silkworm, Bombyx mori;Hasegawa;Nature, Lond.,1957
5. Studies on the mode of action of the diapause hormone with special reference to lipid metabolism in the silkworm, Bombyx mori L. II. Lipid component and fatty acid composition of glyceride in pupal ovary, fat body and haemolymph;Ichimasa;J. seric. Sic., Tokyo,1975