@article{v003a009, author = {Balcan, Maria-Florina and Blum, Avrim}, title = {Approximation Algorithms and Online Mechanisms for Item Pricing}, year = {2007}, pages = {179--195}, doi = {10.4086/toc.2007.v003a009}, publisher = {Theory of Computing}, journal = {Theory of Computing}, volume = {3}, number = {9}, URL = {https://theoryofcomputing.org/articles/v003a009}, }