中国科学技术信息研究所--国家工程技术数字图书馆

oklahoma state university.(2)

university of california berkeley.(2)

university of northern british columbia (canada).(2)

arizona state university.(1)

colorado state university.(1)

george mason university(1)

george mason university.(1)

indiana state university.(1)

iowa state university.(1)

kansas state university(1)

kansas state university.(1)

kent state university.(1)

mcgill university (canada).(1)

miami university.(1)

missouri university of science and technology.(1)

new mexico state university.(1)

rensselaer polytechnic institute.(1)

rochester institute of technology(1)

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

stanford university.(1)

texas a&m university.(1)

the university of arizona(1)

the university of arizona.(1)

the university of texas at san antonio.(1)

the university of vermont and state agricultural college.(1)

the university of wisconsin - madison.(1)

universitaire instelling antwerpen (belgium).(1)

university of california santa cruz.(1)

university of cincinnati.(1)

university of florida.(1)