"Models For Bid Arrivals and Bidder Arrivals in Online Auctions", Methods and Applications of Statistics in Business, Finance and Management Sciences, Newark, NJ, John Wiley & Sons, pp. 293-309, 2010.
"Models of Bidder Activity Consistent with Self-Similar Bid Arrivals", Statistical Methods in eCommerce Research: John Wiley & Sons, 2008.
"Smoothing Sparse and Unevenly-Sampled Curves using Semiparametric Mixed Models: An Application to Online Auctions", Journal of The Royal Statistical Society, Series C (Applied Statistics), vol. 57, issue 2, pp. 127-148, 2008.