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@article{SEMR_2008_5_a21, author = {A. E. Gutman and A. G. Kusraev and S. S. Kutateladze}, title = {The {Wickstead} {Problem}}, journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a}, pages = {293--333}, publisher = {mathdoc}, volume = {5}, year = {2008}, language = {en}, url = {http://geodesic.mathdoc.fr/item/SEMR_2008_5_a21/} }
A. E. Gutman; A. G. Kusraev; S. S. Kutateladze. The Wickstead Problem. Sibirskie èlektronnye matematičeskie izvestiâ, Tome 5 (2008), pp. 293-333. http://geodesic.mathdoc.fr/item/SEMR_2008_5_a21/