Herendeen, David L. and White, Gary C. 2013. "
Statistical Estimates of Rare Stamp Populations." in
Proceedings of the First International Symposium on Analytical Methods in Philately; Proceedings of the First International Symposium on Analytical Methods in Philately, edited by Lera, Thomas M., Barwis, John H., and Herendeen, David L., 91–100.