中国科学技术信息研究所--国家工程技术数字图书馆

indiana university.(8)

university of minnesota.(7)

the university of texas at san antonio.(3)

the university of wisconsin - milwaukee.(3)

university of california san diego.(3)

university of pennsylvania.(3)

university of southern california.(3)

university of washington.(3)

harvard university.(2)

oklahoma state university.(2)

stanford university.(2)

temple university.(2)

the chinese university of hong kong (hong kong).(2)

the university of arizona.(2)

the university of north carolina at chapel hill.(2)

university of colorado at boulder.(2)

university of hawai'i at manoa.(2)

university of maryland college park.(2)

university of michigan.(2)

university of ottawa (canada).(2)

university of toronto (canada).(2)

yale university.(2)

american university.(1)

arizona state university.(1)

bowling green state university.(1)

bryn mawr college.(1)

capella university.(1)

colorado school of mines.(1)

cornell university.(1)

d'youville college.(1)