Erdös, László. “Linear Boltzmann Equation as the Weak Coupling Limit of the Random Schrödinger Equation.”https://doi.org/10.1007/978-3-0348-8745-8_20__In Proceedings of the 7th QMath Conference, 108:233–42. World Scientific Publishing, 1999.https://doi.org/10.1007/978-3-0348-8745-8_20 .