Article Barmore, Frank E. (1993)
Center here; center there; center, center everywhere! The geographic center of Wisconsin and the U.S.A.: Concepts, comments and misconceptions. Wisconsin Geographer (pp. 8-21). (/isis/citation/CBB000060580/) unapi

Article Barmore, Frank E. (1992)
The Earth isn't flat, and it isn't round either! Some significant and little known effects of the Earth's ellipsoidal shape. Wisconsin Geographer (pp. 1-9). (/isis/citation/CBB000060711/) unapi

Article Barmore, Frank E. (1991)
Where are we? Comments on the concept of the “center of population”. Wisconsin Geographer (pp. 40-50). (/isis/citation/CBB000059873/) unapi