中国科学技术信息研究所--国家工程技术数字图书馆

university of nevada las vegas.(63)

university of nevada las vegas(15)

university of nevada reno.(9)

university of puerto rico rio piedras (puerto rico).(3)

arizona state university.(2)

iowa state university.(2)

the pennsylvania state university.(2)

the university of texas at arlington.(2)

university of california los angeles.(2)

university of cincinnati.(2)

yale university.(2)

anadolu university (turkey).(1)

colorado state university.(1)

georgetown university.(1)

keiser university.(1)

northcentral university.(1)

pontificia universidad catolica de chile (chile).(1)

pontificia universidad catolica del peru (peru).(1)

princeton university.(1)

purdue university.(1)

saint peter's university.(1)

san diego state university.(1)

san jose state university.(1)

saybrook graduate school and research center.(1)

southeast missouri state university.(1)

swiss management center (switzerland).(1)

temple university.(1)

the florida state university.(1)

the university of texas at austin(1)

the university of wisconsin - madison(1)