A branch-and-bound algorithm for the double travelling salesman problem with two stacks

Networks ◽  
2012 ◽  
Vol 61 (1) ◽  
pp. 58-75 ◽  
Author(s):  
Francesco Carrabs ◽  
Raffaele Cerulli ◽  
Maria Grazia Speranza
Networks ◽  
2018 ◽  
Vol 72 (3) ◽  
pp. 382-392 ◽  
Author(s):  
Anna Arigliano ◽  
Tobia Calogiuri ◽  
Gianpaolo Ghiani ◽  
Emanuela Guerriero

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