I have found one source which is a collection which contains several hundreds of subsections with easily 100 authors I presume. It's a textbook on synthetic material.
The bean counter I am, I initially tried to incorporate every single author of every (sub)(sub)section of the book because unfortunately Springer, the publisher, only listed the authors for each chapter. The DOI import does not work on any level below. Just to make it clear for everyone's sanity: I only cited the collection so far and do not intend to work in the other authors by hand.
If you were to take on the task to simply enter any info of every author for his/hers contribution into your literature database (not your paper/essay's or thesis' bibliography), how would you do that? Note it all down by hand in your favorite literature management software or do you have some tricks?