中国科学技术信息研究所--国家工程技术数字图书馆

iowa state university.(3)

texas a&m university.(3)

university of south carolina.(3)

arizona state university.(2)

clemson university(2)

clemson university.(2)

college of charleston.(2)

columbia university.(2)

university of notre dame.(2)

university of washington.(2)

american university.(1)

cornell university.(1)

duke university.(1)

east carolina university.(1)

george mason university.(1)

georgia institute of technology.(1)

lehigh university.(1)

louisiana tech university.(1)

michigan technological university.(1)

missouri university of science and technology(1)

north dakota state university.(1)

princeton university.(1)

purdue university.(1)

rice university.(1)

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

southern university and agricultural and mechanical college.(1)

southwest texas state university.(1)

state university of new york at binghamton.(1)

state university of new york at buffalo.(1)

state university of new york college of environmental science and forestry.(1)