@article{oai:repository.dl.itc.u-tokyo.ac.jp:00021040, author = {HAGIUDA, Yoshiaki and MATSUNAGA, Masahisa}, issue = {9}, journal = {生産研究}, month = {Sep}, note = {application/pdf}, pages = {477--480}, title = {研究速報 : Branching in Distributed Cracks}, volume = {29}, year = {1977} }