20799 Alex Bishop/.../James Tanton: An intuitive approach to the
Borsuk-Ulam theorem. MAA Focus November 2008, 14-15.

L. Brouwer: Beweis des Jordanschen Kurvensatzes.
Math. Annalen 69 (1910), 169-175.

22980 Gregorio Franzoni: The Klein bottle - variations on a theme.
Notices AMS September 2012, 1076-1082.

1316 Jonathan Gross/Thomas Tucker: Topological graph theory.
Wiley 1987.

18148 Joachim Jäger/Till Neu: Der Bildhauer Josep Canals.
DMV-Mitteilungen 14/3 (2006), 162-164. Der Bildhauer Josep Canals (geb. 1955)
widmet sich in seinem Werk ganz dem Möbiusband.

23266 Boris Kolev: Plane topology and dynamical systems.
Internet 1994, 35p. Contains a short proof of the invariance of domain theorem
in dimension 2.

5687 Vagn Lundsgaard Hansen: Jakob Nielsen (1890-1959).
Math. Intell. 15/4 (1993), 44-53.

L. Kinsey: Topology of surfaces. Springer 1993, 270p. 3-540-94102-9. DM 68.

23336 Fiona Ross/William Ross: The Jordan curve theorem is not trivial.
J. Math. Arts 5/4 (2011), 213-219.