Human performance and retrieval precision revisited. - Mark D. Smucker; Chandra Prakash Jethani (SIGIR, 2010)

Measuring assessor accuracy: a comparison of nist assessors and user study participants. - Mark D. Smucker; Chandra Prakash Jethani (SIGIR, 2011)

Time to judge relevance as an indicator of assessor error. - Mark D. Smucker; Chandra Prakash Jethani (SIGIR, 2012)