@article{YJOR_2000_10_2_a9,
     author = {N. Mladenovi\'c and F. Plastria},
     title = {A {Note} on the {Continuous} {p-Defense-Sum} {Problem}},
     journal = {Yugoslav journal of operations research},
     pages = {299 },
     publisher = {mathdoc},
     volume = {10},
     number = {2},
     year = {2000},
     zbl = {1006.90054},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/YJOR_2000_10_2_a9/}
}