{"id":"000028248","type":"book","title":"K-Ar and fission track ages of some obsidians from Japan.- Tokyo","container-title":"Journal of the Geological Society of Japan; 76. 1970, No. 6, S. 309-313: 2 Ill.; 2 Tab","author":[{"family":"Kaneoka","given":"Ichiro"}],"issued":{"raw":"1970"}}