@article{MOMA_1996__121_3_178713,
     author = {Guangheng Ji and Hongwen Lu},
     title = {On {Dispersion} and {Markov} {Constants.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {69--78},
     publisher = {mathdoc},
     volume = {121},
     number = {3},
     year = {1996},
     zbl = {0858.11036},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1996__121_3_178713/}
}