中国科学技术信息研究所--国家工程技术数字图书馆

university of california los angeles.(3)

university of illinois at urbana-champaign.(3)

the university of north carolina at chapel hill.(2)

university of maryland college park.(2)

arizona state university.(1)

case western reserve university.(1)

columbia university.(1)

emory university.(1)

george mason university.(1)

grand canyon university.(1)

harvard university.(1)

hong kong university of science and technology (hong kong).(1)

illinois institute of technology.(1)

michigan state university.(1)

missouri university of science and technology.(1)

north carolina state university.(1)

ohio university.(1)

oklahoma state university.(1)

princeton university.(1)

south dakota state university.(1)

southern illinois university at carbondale.(1)

state university of new york at albany.(1)

state university of new york at buffalo.(1)

syracuse university.(1)

teachers college columbia university.(1)

tennessee technological university.(1)

the chinese university of hong kong (hong kong).(1)

the claremont graduate university.(1)

the florida state university.(1)

the george washington university.(1)