Roesener AG, Hall SN. A NONLINEAR INTEGER PROGRAMMING FORMULATION FOR THE AIRLIFT LOADING PROBLEM WITH INSUFFICIENT AIRCRAFT. J. Nonlinear Anal. Optim. [internet]. 2014 Jan. 16 [cited 2026 Sep. 1];5(1):125-41. available from: https://ph03.tci-thaijo.org/index.php/jnao/article/view/2744