@article{v009a024, author = {Svensson, Ola}, title = {Hardness of Vertex Deletion and Project Scheduling}, year = {2013}, pages = {759--781}, doi = {10.4086/toc.2013.v009a024}, publisher = {Theory of Computing}, journal = {Theory of Computing}, volume = {9}, number = {24}, URL = {https://theoryofcomputing.org/articles/v009a024}, }