TY  - JOUR
AU  - Sam Hopkins
AU  - David Perkinson
TI  - Orientations, semiorders, arrangements, and parking functions
JO  - The electronic journal of combinatorics
PY  - 2012
VL  - 19
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.37236/2684/
DO  - 10.37236/2684
ID  - 10_37236_2684
ER  -