Politzer, H. David (1978) Are quarks dirac particles?; ISBN 0-88318-147-9; Current Trends in the Theory of Fields: A Symposium in Honor of P. A. M. Dirac; 108-111; 10.1063/1.31589
Politzer, H. David (1978) Quantum Chromodynamics at High Energies; ISBN 0906346002; Unification of elementary forces and gauge theories : papers presented at the Ben Lee Memorial International Conference on Parity Nonconservation, Weak Neutral Currents and Gauge Theories; 593-606