@article{CC_2004_33_2_a4,
     author = {Ginchev, Ivan and Guerraggio, Angelo and Rocca, Matteo},
     title = {C1,1 vector optimization problems and {Riemann} derivatives},
     journal = {Control and Cybernetics},
     pages = {259--273},
     publisher = {mathdoc},
     volume = {33},
     number = {2},
     year = {2004},
     zbl = {1167.90639},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CC_2004_33_2_a4/}
}