I have a question regarding “Fair Use” in Youtube videos that are monetized through Google Adsense. In particular, is one allowed to cite academic publications (books, articles, etc.) and refer to their contents in an Adsense-monetized video on Youtube? Let me give two possible scenarios to illustrate:
(A) I create a Youtube video about, for instance, a particular language. I want to analyze it and I use a theoretical approach developed in the published writings by Smith (1980, 1991, …) [author invented for the purpose of being explicit]. These works are standard in the field of linguistics and are cited all the time - a big subset of the field adopts the approach of these works. The works are referred to in the Youtube video and cited as references in the description.
(B) There is a book on the history and culture of people X by John Doe (e.g. 1990). I want to discuss how culture X celebrates Christmas. I look up when Christmas comes up in the book and what traditions it involves. I then discuss these traditions in the Youtube video. The book (Doe 1990) is mentioned in the video and cited in the description.
Now, (A) and (B) are scenarios that are completely standard and are practiced all the time in academic writing. My question is, whether (A) and (B) are in anyway problematic if used in a monetized Youtube video.
N.B. In both cases, no identical text of the original publications would be reproduced in the videos. Everything would be heavily paraphrased (again, as standardly done in academic writing). Also, in both scenarios very minor parts of the publications would be referred to, content-wise. Everyone seems to do this on Youtube, but I wanted to check the legality of the matter.