@article{oai:repository.dl.itc.u-tokyo.ac.jp:00021207, author = {豊島, 史郎 and 柴田, 碧}, issue = {5}, journal = {生産研究}, month = {May}, note = {application/pdf}, pages = {234--234}, title = {研究速報 : 3次元地震動の共分散行列固有値について}, volume = {28}, year = {1976} }