Bridson, M., & Howie, J. (2005). Subgroups of direct products of elementarily free groups.
Lua i Stíl Chicago (17ú heag.)Bridson, M., agus J. Howie. Subgroups of Direct Products of Elementarily Free Groups. 2005.
Lua MLA (9ú heag.)Bridson, M., agus J. Howie. Subgroups of Direct Products of Elementarily Free Groups. 2005.
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