@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/