Englert, Matthias; Röglin, Heiko; Vöcking, Berthold (2007), "Worst Case and Probabilistic Analysis of the 2-Opt Algorithm for the TSP", Proceedings of the Eighteenth Annual ACM-SIAM Symposium on Discrete Algorithms, 68: 190–264, arXiv:2302.06889, doi:10.1007/s00453-013-9801-4
Borgwardt, Karl-Heinz; Damm, Renate; Donig, Rudolf; Joas, Gabriele (1993), "Empirical studies on the average efficiency of simplex variants under rotation symmetry", ORSA Journal on Computing, 5 (3), Operations Research Society of America: 249–260, doi:10.1287/ijoc.5.3.249
Englert, Matthias; Röglin, Heiko; Vöcking, Berthold (2007), "Worst Case and Probabilistic Analysis of the 2-Opt Algorithm for the TSP", Proceedings of the Eighteenth Annual ACM-SIAM Symposium on Discrete Algorithms, 68: 190–264, arXiv:2302.06889, doi:10.1007/s00453-013-9801-4