@article{oai:repository.dl.itc.u-tokyo.ac.jp:00017051,
 author = {中西, 泰夫 and 山田, 節夫},
 issue = {2},
 journal = {社會科學研究},
 month = {Jan},
 pages = {79--96},
 title = {特許の価値と陳腐化率(<特集>研究開発戦略・特許制度と産業組織)},
 volume = {61},
 year = {2010}
}