Celebratio Mathematica

C. M. Gor­don: “Artin groups, 3-man­i­folds and co­her­ence,” pp. 193–​198 in FICOFEST: A con­fer­ence in low di­men­sion­al to­po­logy (Mérida, Mex­ico, 9–13 Decem­ber 2002), published as Bol. Soc. Mat. Mex­ic­ana (3) 10 : Special issue. Birkhäuser (Basel), 2004. Ded­ic­ated to Fico on the oc­ca­sion of his 60th birth­day. MR 2199348 Zbl 1100.​57001 incollection

F. González-Acuña, C. M. Gor­don, and J. Si­mon: “Un­solv­able prob­lems about high­er-di­men­sion­al knots and re­lated groups,” En­sei­gn. Math. (2) 56 : 1–​2 (2010), pp. 143–​171. MR 2674857 Zbl 1213.​57004 ArXiv 0908.​4009 article