Are you familiar with these notes?
Alexander Kupers, "Zeeman's Conjecture," 2017. PDF download.
Kupers refers to this as "a good reference":
Sergei Matveev and Dale Rolfsen, "Zeeman’s collapsing conjecture," Two-dimensional homotopy and combinatorial group theory, London Math. Soc. Lecture Note Ser., vol. 197, Cambridge Univ. Press, Cambridge, 1993.
Are you familiar with these notes?
Alexander Kupers, "Zeeman's Conjecture," 2017. PDF download.
Kupers refers to this as "a good reference":
Sergei Matveev and Dale Rolfsen, "Zeeman’s collapsing conjecture," Two-dimensional homotopy and combinatorial group theory, London Math. Soc. Lecture Note Ser., vol. 197, Cambridge Univ. Press, Cambridge, 1993.
