中国科学技术信息研究所--国家工程技术数字图书馆

harvard university.(14)

university of california berkeley.(14)

princeton university.(13)

state university of new york at stony brook.(9)

texas a&m university.(9)

university of california santa barbara.(9)

the university of chicago.(8)

university of michigan.(8)

the university of wisconsin - madison.(7)

the university of texas at austin.(6)

university of california santa cruz.(6)

columbia university.(5)

cornell university.(5)

oklahoma state university.(5)

university of california davis.(5)

university of california los angeles.(5)

california institute of technology.(4)

rutgers the state university of new jersey school of graduate studies.(4)

rutgers the state university of new jersey - new brunswick.(4)

stanford university.(4)

state university of new york at stony brook(4)

the johns hopkins university.(4)

the university of texas at arlington.(4)

university of california berkeley(4)

university of florida.(4)

university of washington.(4)

brandeis university.(3)

columbia university(3)

new york university.(3)

northeastern university(3)