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@article{MZM_2000_68_3_a3, author = {I. V. Dobrynina}, title = {On the width in free products with amalgamation}, journal = {Matemati\v{c}eskie zametki}, pages = {353--359}, publisher = {mathdoc}, volume = {68}, number = {3}, year = {2000}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_2000_68_3_a3/} }
I. V. Dobrynina. On the width in free products with amalgamation. Matematičeskie zametki, Tome 68 (2000) no. 3, pp. 353-359. http://geodesic.mathdoc.fr/item/MZM_2000_68_3_a3/