@article{oai:repo.qst.go.jp:00043400,
 author = {Ishikawa, Tetsuo and 石川 徹夫},
 issue = {4},
 journal = {Radiation Protection Dosimetry},
 month = {May},
 pages = {327--330},
 title = {Effects of thoron on a radon detector of pulse-ionization chamber type},
 volume = {108},
 year = {2004}
}