@article {78,
	title = {The free n-category generated by a cube, oriented matroids and higher Bruhat orders},
	journal = {Funktsional. Anal. i Prilozhen.},
	volume = {25},
	year = {1991},
	pages = {62{\textendash}65},
	issn = {0374-1990},
	doi = {10.1007/BF01090678},
	url = {http://dx.doi.org/10.1007/BF01090678},
	author = {Voevodsky, V. A. and Kapranov, M. M.}
}
