@article{DCG_1993__9_2_131235,
     author = {G. Das and D. Dobkin and I. Alth\"ofer and D. Joseph and J. Soares},
     title = {On {Sparse} {Spanners} of {Weighted} {Graphs.}},
     journal = {Discrete & computational geometry},
     pages = {81--100},
     publisher = {mathdoc},
     volume = {9},
     number = {2},
     year = {1993},
     zbl = {0762.05039},
     url = {http://geodesic.mathdoc.fr/item/DCG_1993__9_2_131235/}
}