@article{10_1090_S0894_0347_1990_1046181_2,
     author = {Goodman, Jacob E. and Pollack, Richard and Sturmfels, Bernd},
     title = {The intrinsic spread of a configuration in {\dh}‘…^{{\dh}‘‘}},
     journal = {Journal of the American Mathematical Society},
     pages = {639--651},
     publisher = {mathdoc},
     volume = {03},
     number = {3},
     year = {1990},
     doi = {10.1090/S0894-0347-1990-1046181-2},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-1990-1046181-2/}
}