Covariance-invariant signal processing. - Louis L. Scharf; Joseph Perl (ICASSP, 1976)

The Geant4 Visualisation System. - John Allison; M. Asai; G. Barrand; Mark Dönszelmann; K. Minamimoto; Joseph Perl; S. Tanaka; E. Tcherniaev; J. Tinslay (Comput. Phys. Commun., 2008)

The Geant4 Visualisation System - a multi-driver graphics system - John Allison; Laurent Garnier; Akinori Kimura; Joseph Perl (CoRR, 2012)