The Challenge of Electronic Competition: Empirical Analysis of Substitution Effects on the Demand for Letter Services

Plum, M. (1997). The Challenge of Electronic Competition: Empirical Analysis of Substitution Effects on the Demand for Letter Services. In Managing Change in the Postal and Delivery Industries (pp. 270–287). Springer US. https://doi.org/10.1007/978-1-4615-6321-1_14