@article{3224,
author = {Sierksma, Gerard and Dietzenbacher, Erik},
title = {Starshapedness and its applications to input-output models},
journal = {Portugaliae mathematica},
volume = {47},
year = {1990},
pages = {215-226},
zbl = {0722.90018},
mrnumber = {1090072},
language = {en},
url = {http://dml.mathdoc.fr/item/3224}
}
Sierksma, Gerard; Dietzenbacher, Erik. Starshapedness and its applications to input-output models. Portugaliae mathematica, Tome 47 (1990) pp. 215-226. http://gdmltest.u-ga.fr/item/3224/