1. Drew University, Madison, NJ, USA
2. University of Colorado Boulder, Boulder, CO, USA
3. Norwegian University of Science and Technology, Gløshaugen, Norway
4. National University of San Marcos, Lima, Peru
5. University of Hartford, Hartford, CT, USA
6. Washington University in St. Louis, St. Louis, MO, USA
7. Petroleum-Gas University of Ploiesti, University Politehnica of Bucharest, Bucharest, Romania