An outline of a unifying statistical theory. - Frank Hampel (ISIPTA, 2001)

The Proper Fiducial Argument. - Frank Hampel (GTIT-C, 2006)

A smoothing principle for the Huber and other location M-estimators. - Frank Hampel; Christian Hennig; Elvezio Ronchetti (Comput. Stat. Data Anal., 2011)