@article{DMTCS_2015_special_285_a62,
     author = {Karp, Steven N.},
     title = {Sign variation, the {Grassmannian,} and total positivity},
     journal = {Discrete mathematics & theoretical computer science},
     publisher = {mathdoc},
     volume = {DMTCS Proceedings, 27th International Conference on Formal Power Series and Algebraic Combinatorics (FPSAC 2015)},
     year = {2015},
     doi = {10.46298/dmtcs.2518},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.46298/dmtcs.2518/}
}