@article{oai:soar-ir.repo.nii.ac.jp:00015246,
 author = {柳澤,  延房},
 issue = {3},
 journal = {蠶絲學雜誌},
 month = {Mar},
 note = {Article, 蠶絲學雜誌 14(3): 127-143(1943)},
 pages = {127--143},
 title = {家蠶繭形の數學的表示と營繭中に於ける蠶の運動(Ⅳ)},
 volume = {14},
 year = {1943}
}