Bridson, M., & Tweedale, M. (2006). Deficiency and abelianized deficiency of some virtually free groups.
Lua i Stíl Chicago (17ú heag.)Bridson, M., agus M. Tweedale. Deficiency and Abelianized Deficiency of Some Virtually Free Groups. 2006.
Lua MLA (9ú heag.)Bridson, M., agus M. Tweedale. Deficiency and Abelianized Deficiency of Some Virtually Free Groups. 2006.
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