According to the Book of Mormon itself, it was written by many ancient prophets. The authors of this study made the assumption
that the writers of each verse, or partial verse, could be identified according to information given in the text.
The authors of the study found their assumption accurate.
Through the process of assigning each quoted segment a source, we identified over one hundred authors or originators.
Unfortunately the study was conducted in the infancy of the internet and I haven't been able to locate the database of verse-author assignments.
What available resource provides the author of each verse according to internal authorship statements?