BibTex format
@article{Hoernig:2011:10.2202/1935-1704.1826,
author = {Hoernig, S and Valletti, T},
doi = {10.2202/1935-1704.1826},
journal = {B.E. Journal of Theoretical Economics},
title = {When two-part tariffs are not enough: Mixing with nonlinear pricing},
url = {http://dx.doi.org/10.2202/1935-1704.1826},
volume = {11},
year = {2011}
}