@article{10_4064_sm200_1_4,
     author = {D. A. Edwards},
     title = {A simple proof in {Monge{\textendash}Kantorovich} duality theory},
     journal = {Studia Mathematica},
     pages = {67--77},
     publisher = {mathdoc},
     volume = {200},
     number = {1},
     year = {2010},
     doi = {10.4064/sm200-1-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm200-1-4/}
}