Klahr, S.; Ratti, U. (2000). ". Increasing engineering student participation in study abroad: A study of U.S. and European programs". Journal of Studies in International Education. 1. 4: 79–102. doi:10.1177/102831530000400106. S2CID145231533.
Klahr, S.; Ratti, U. (2000). ". Increasing engineering student participation in study abroad: A study of U.S. and European programs". Journal of Studies in International Education. 1. 4: 79–102. doi:10.1177/102831530000400106. S2CID145231533.