1. University of Illinois at Urbana-Champaign, Urbana, IL, USA
2. Georgia State University, Atlanta, GA, USA
3. University of Michigan, Ann Arbor, MI, USA
4. Green Mango Associates, LLC, Bethlehem, PA, USA
5. University of Nebraska Omaha, Omaha, NE, USA
6. Indiana University, Bloomington, IN, USA