[1]
John R. Stallings.
An extension theorem for Euler characteristics of groups.
Geom. Dedicata, 92:3-39, 2002.
Dedicated to John Stallings on the occasion of his 65th birthday.
[2]
Ian Chiswell.
Introduction to: ``An extension theorem for Euler characteristics
of groups'' [Geom. Dedicata 92 (2002), 3-39; MR 2003m:20068b] by
J. R. Stallings.
Geom. Dedicata, 92:1-2, 2002.
Dedicated to John Stallings on the occasion of his 65th birthday.
[3]
R. J. Zimmer, editor.
Dedicated to John Stallings on the occasion of his 65th
birthday.
Kluwer Academic Publishers Group, Dordrecht, 2002.
Geom. Dedicata 92 (2002).
[4]
John R. Stallings.
Surfaces mapping to wedges of spaces. A topological variant of the
Grushko-Neumann theorem.
In Groups-Korea '98 (Pusan), pages 345-353. de Gruyter,
Berlin, 2000.
[5]
John R. Stallings.
Whitehead graphs on handlebodies.
In Geometric group theory down under (Canberra, 1996), pages
317-330. de Gruyter, Berlin, 1999.
