The following publications are possibly variants of this publication:
- Parameterized Complexity of the Anchored k-Core Problem for Directed GraphsRajesh Hemant Chitnis, Fedor V. Fomin, Petr A. Golovach. fsttcs 2013: 79-90 [doi]
- Parameterized Complexity of Directed Spanner ProblemsFedor V. Fomin, Petr A. Golovach, William Lochet, Pranabendu Misra, Saket Saurabh 0001, Roohani Sharma. algorithmica, 84(8):2292-2308, 2022. [doi]
- Parameterized Complexity of Directed Spanner ProblemsFedor V. Fomin, Petr A. Golovach, William Lochet, Pranabendu Misra, Saket Saurabh 0001, Roohani Sharma. iwpec 2020: [doi]