1.		Tourism forecasting: accuracy comparisons across aggregated/disaggregated data / by Christine A. Witt and Stephen F. Witt Autor: Witt, Christine A. Coautor: ; Witt, Stephen F
2.		Econometric forecasts : tourism trends to 2000 / Egon Smeral, Stephen F. Witt, Christine A. Witt Autor: Smeral, Egon Coautor: ; Witt, Stephen F Witt, Christine A.
3.		Econometric forecasts of tourism demand to 2005 / Egon Smeral, Stephen F. Witt Autor: Smeral, Egon Coautor: ; Witt, Stephen F
4.		Opening of the former communist countries of Europe to inbound tourism / Stephen F. Witt Autor: Witt, Stephen F