[1] Univ Nebraska, Coll Agr Sci & Nat Resources, Dept Agr Leadership Educ & Commun, Hospitality Restaurant & Tourism Management, Lincoln, NE 68588 USA
[2] Univ Wollongong, Inst Innovat Business & Social Res, Lab Intelligent Syst Tourism, Northfields Ave, Wollongong, NSW 2522, Australia