@article{MS2_1983__53_166854,
     author = {Chih-Han Sah},
     title = {Scissors congruences, {I.} {The} {Gauss-Bonnet} map corrections.},
     journal = {Mathematica Scandinavica},
     pages = {62--62},
     year = {1983},
     volume = {53},
     zbl = {0525.52005},
     url = {http://geodesic.mathdoc.fr/item/MS2_1983__53_166854/}
}