@article{GDZPPN002104962, title = {Non-minimal modular symbols for GL(n).}, journal = {Inventiones mathematicae}, volume = {93}, year = {1988}, pages = {483-492}, zbl = {0671.22005}, url = {http://dml.mathdoc.fr/item/GDZPPN002104962} }
Ash, Avner. Non-minimal modular symbols for GL(n).. Inventiones mathematicae, Tome 93 (1988) pp. 483-492. http://gdmltest.u-ga.fr/item/GDZPPN002104962/