no. 3
Some remarks on two degrees of asymmetry in the traveling salesman problem
RAIRO - Operations Research - Recherche Opérationnelle, Tome 22 (1988) no. 3, pp. 301-308. 
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     author = {Jeromin, Bernd and K\"orner, Frank},
     title = {Some remarks on two degrees of asymmetry in the traveling salesman problem},
     journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
     pages = {301--308},
     publisher = {EDP-Sciences},
     volume = {22},
     number = {3},
     year = {1988},
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     zbl = {0654.90090},
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     url = {http://www.numdam.org/item/RO_1988__22_3_301_0/}
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Jeromin, Bernd; Körner, Frank. Some remarks on two degrees of asymmetry in the traveling salesman problem. RAIRO - Operations Research - Recherche Opérationnelle, Tome 22 (1988) no. 3, pp. 301-308. http://www.numdam.org/item/RO_1988__22_3_301_0/

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