Today, I was reading "INTRODUCTION TO THE GOSPELS" in the aforementioned work. There seem to be footnotes like after
"Matthew, Mark, Luke, and John are consistently named as the Gospel writers throughout Christian antiquity.1"
"In the end, no other scenario satisfactorily explains how the titles of the four Gospels were consistently used from the second century onward.2"
Unfortunately, I don't find any footnote text within the Logos resource. Can anyone confirm?