1. C. Cercignani. The Boltzmann Equation and its Applications. Springer, New York, 1988. III.1
2. C. Cercignani. The Boltzmann Equation and its Applications. Springer, New York, 1988. III.5
3. C. Cercignani. The Boltzmann Equation and its Applications. Springer, New York, 1988. Sect. IV.3
4. C. Cercignani. The Boltzmann Equation and its Applications. Springer, New York, 1988. Sect. VIII.3
5. D. Morgenstern. Analytical studies related to the Maxwell-Boltzmann equation. J. Rational Mech. Anal., 4:533–555, 1955.