@article{GDZPPN002356791,
title = {Scissors congruences, I. The Gauss-Bonnet map.},
journal = {Mathematica Scandinavica},
volume = {48},
year = {1981},
pages = {181-210},
zbl = {0496.52003},
url = {http://dml.mathdoc.fr/item/GDZPPN002356791}
}
Sah, Chih-Han. Scissors congruences, I. The Gauss-Bonnet map.. Mathematica Scandinavica, Tome 48 (1981) pp. 181-210. http://gdmltest.u-ga.fr/item/GDZPPN002356791/