MMA packages for A=B

The book $$A=B$$, available here, contains in Appendix A pointers to three Mathematica packages (Gosper, Hyper, WZ) that accompany the book. The links to the book web pages are stale. Can anyone give me a pointer to these packages?

• The links to the packages work fine, do you mean something else? – ciao Nov 28 '19 at 1:46
• @ciao Perhaps I'm following the wrong links. Wilf's home page has been archived, Zeilberg's home page contains links only to the Maple objects, and the uni-linz and univie links both get 404 errors. Can you post the links you are using? – rogerl Nov 28 '19 at 12:46
• The links here for Gosper, Hyper, and WZ still work. – J. M. will be back soon Nov 28 '19 at 23:19
• @J.M.willbebacksoon Thanks. – rogerl Nov 29 '19 at 12:43