@incollection{Kumagai12, author = {Hidenori Kumagai and Ryoichi Iwase and Masataka Kinoshita and Hideaki Machiyama and Mutsuo Hattori and Masaharu Okano}, title = {Environmental Gamma-Ray Observation in Deep Sea}, booktitle = {Gamma Radiation}, publisher = {IntechOpen}, address = {Rijeka}, year = {2012}, editor = {Feriz Adrovic}, chapter = {4}, doi = {10.5772/36392}, url = {https://doi.org/10.5772/36392} }