Until quite recently, I held a belief, which now seems mistaken, about the Factbook: Every Faithlife-sold resource with an article in the Factbook with an author listed in that article is tied to an article in the Factbook about that author.
My counter evidence is that there are a lot more resources by Joseph Ratzinger / Pope Benedict XVI in my library and in Factbook than are listed in any of his Factbook articles.
As one specific example, I can't find his The Spirit of the Liturgy in a Works section anywhere, even though its Factbook article correctly indicates its author as Joseph Ratzinger. (No, liturgical scholars, it was not misattributed by the Factbook to Romano Guardini.)
Can anyone:
1. Confirm that my counter-evidence is flawed, perhaps due to a bug of some kind (I was using the Factbook on mobile) preventing resources from before his election to the pontificate from showing up
2. Verify and explain my new finding
3. Fix the apparent non-attribution of dozens of volumes to the Pope Emeritus
4. Clear up my confusion in some other useful way