G. Ucoluk
"Genetic algorithm solution of the TSP avoiding special crossover and mutation."
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For a detailed discussion on TSP a good reference is the study of Lawler et al. [11]

A perfect review article on GA for TSP  is by Larranaga et al. [10]


     [10] P. Larranaga, C. Kuijpers, R. Murga, I. Inza and S. Dizdarevic. (1999) "Genetic algorithms for the Traveling salesman Problem: A review of Representations and Operators." Artificial Inteligence Review, 13, 1999 pp. 129-170.