Combining and projecting flow models for the (precedence constrained) asymmetric traveling salesman problem Networks Journal Article Luis Gouveia Pierre Pesneau Mario Ruthmair Daniel Santos Publication Year of Publication: 2018 Identifiers ISSN: 0028-3045 Locators URL https://doi.org/10.1002/net.21765 DOI: 10.1002/net.21765 Sustainable Development Goals