Tight lower bounds for certain parameterized NP-hard problems

- Chen, Jianer, Chor, Benny, Fellows, Mike, Huang, Xiuzhen, Juedes, David, Kanj, Iyad A, Xia, Ge

Linear kernels in linear time, or how to save k colours in O(n2) steps

- Fellows, Mike, Juedes, David, Chor, Benny