The following publications are possibly variants of this publication:
- The Routing Open Shop Problem: New Approximation AlgorithmsIlya Chernykh, Nikita Dryuck, Alexander Kononov, Sergey Sevastyanov. waoa 2010: 75-85 [doi]
- The routing open-shop problem on a network: Complexity and approximationIgor Averbakh, Oded Berman, Ilya Chernykh. eor, 173(2):531-539, 2006. [doi]
- A 6/5-approximation algorithm for the two-machine routing open-shop problem on a two-node networkIgor Averbakh, Oded Berman, Ilya Chernykh. eor, 166(1):3-24, 2005. [doi]