中国科学技术信息研究所--国家工程技术数字图书馆

purdue university.(4)

capella university.(2)

carnegie mellon university.(2)

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

university of california davis.(2)

university of toronto (canada).(2)

utah state university.(2)

drexel university.(1)

maharishi university of management.(1)

michigan state university.(1)

new york university.$bcomputer science.(1)

northeastern university.(1)

northern arizona university.(1)

rensselaer polytechnic institute.(1)

rice university(1)

stanford university.(1)

temple university(1)

the george washington university.(1)

the johns hopkins university(1)

the university of memphis.(1)

the university of north carolina at chapel hill.(1)

the university of oklahoma.(1)

the university of toledo.(1)

university of california los angeles(1)

university of california riverside.(1)

university of california santa barbara.(1)

university of cincinnati.(1)

university of colorado at boulder.(1)

university of lethbridge (canada).(1)

university of massachusetts boston.(1)