@article{oai:tsukuba.repo.nii.ac.jp:00004809,
 author = {Nagashima, Takayuki},
 journal = {菅平高原実験センター研究報告},
 month = {Mar},
 pages = {89--93},
 title = {Eye structure of externally eyeless Grylloblattids (Insecta,Notoptera)},
 volume = {11},
 year = {1991}
}