@article{1102623464, author = {Brick, Stephen G.}, title = {Dehn functions of groups and extensions of complexes.}, journal = {Pacific J. Math.}, volume = {161}, number = {2}, year = {1993}, pages = { 115-127}, language = {en}, url = {http://dml.mathdoc.fr/item/1102623464} }
Brick, Stephen G. Dehn functions of groups and extensions of complexes.. Pacific J. Math., Tome 161 (1993) no. 2, pp. 115-127. http://gdmltest.u-ga.fr/item/1102623464/