Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Zvi Hashin,The Elastic Moduli of Heterogeneous Materials,Journal of Applied Mechanics,0021-8936,ASME International,1962-03-01,29,1,143-150,https://cir.nii.ac.jp/crid/1360292619934070784,https://doi.org/10.1115/1.3636446