ChatGPT produces made-up nonexistent references

I became as soon as attempting to search out references to mathematical treatment of lists, and queried ChatGPT the following:

Please present references that tackle the mathematical properties of lists

To which ChatGPT replied as follows:

    "Introduction to the Mathematics of Lists" by Peter J. Cameron (//www.cambridge.org/core/books/introduction-to-the-mathematics-of-lists/3F0C6D0E69E49BF6D5CD6CA5D6A761B2)    "List Processing and Programming" by John F. Sowa (//www.cs.cmu.edu/~fp/courses/lp/lectures.html)    "List Processing in Prolog" by David H. D. Warren (//www.cs.purdue.edu/homes/hosking/726/html/prolog_lists.html)    "Introduction to the Mathematics of Lists and Trees" by Meinard Müller (//link.springer.com/book/10.1007%2F978-3-319-05147-1)    "Mathematics of Lists and Trees" by Markus N. Rabe (//www.researchgate.net/publication/296955213_Mathematics_of_Lists_and_Trees)

I became as soon as rather stunned and pleased, because I hadn’t had powerful success with Google. Nonetheless it looks that each and each one of those references and hyperlinks are made up. The references create no longer exist and the hyperlinks themselves appear to be cobbled collectively. The final hyperlink as an illustration, takes you to a paper on “Grain mixes for subgrade layers” – the title within the url is beside the level and handiest the number matters.

Googling for a few of those authors throws up writer pages with their publications, and it looks they’ve by no arrangement published papers with those titles! Gaze as an illustration, ///http://www-teams.mcs.st-andrews.ac.uk/~pjc/publ/