中国科学技术信息研究所--国家工程技术数字图书馆

indiana university.(2)

rutgers the state university of new jersey - new brunswick.(2)

university of california berkeley.(2)

university of california los angeles.(2)

washington university in st. louis.(2)

brown university.(1)

duke university.(1)

fordham university.(1)

harvard university.(1)

indiana university of pennsylvania.(1)

loyola university chicago.(1)

queen's university (canada).(1)

rutgers the state university of new jersey - new brunswick(1)

the university of chicago.(1)

universite de paris iv (paris-sorbonne) (france)(1)

university of arkansas.(1)

university of california irvine(1)

university of california irvine.(1)

university of california santa cruz.(1)

university of connecticut(1)

university of massachusetts amherst.(1)

university of oregon(1)

washington university in st. louis(1)

yale university(1)