@article{DCG_1994__12_1_131335,
     author = {M. Sharir},
     title = {Almost {Tight} {Upper} {Bounds} for {Lower} {Envelopes} in {Higher} {Dimensions.}},
     journal = {Discrete & computational geometry},
     pages = {327--346},
     publisher = {mathdoc},
     volume = {12},
     number = {1},
     year = {1994},
     zbl = {0819.68068},
     url = {http://geodesic.mathdoc.fr/item/DCG_1994__12_1_131335/}
}