Stigler, Stephen M. (2001), "Ancillary history", State of the art in probability and statistics, Institute of Mathematical Statistics Lecture Notes - Monograph Series, Beachwood, OH: Institute of Mathematical Statistics, pp. 555–567, doi:10.1214/lnms/1215090089, ISBN978-0-940600-50-8, retrieved 2023-04-24
Stigler, Stephen M. (2001), "Ancillary history", State of the art in probability and statistics, Institute of Mathematical Statistics Lecture Notes - Monograph Series, Beachwood, OH: Institute of Mathematical Statistics, pp. 555–567, doi:10.1214/lnms/1215090089, ISBN978-0-940600-50-8, retrieved 2023-04-24