Current historical research appears first in journal articles and later in books (books take perhaps 3-5 years to get published in history!). Convention papers are not so useful because historians do not usually circulate their convention papers widely.
The latest edition of a textbook will try to reflect recent scholarship but in history they rarely have footnotes so it is never quite clear what or who they are referencing.
Very few Wiki articles in history city any journals, and the books used tend to be out of date or else well known new books by famous authors working at the Pulitzer prize level--those prize books do get cited. However much less often does Wiki cite monographs from university presses. It is now possible to use google and amazon for their excellent search and excerpt roles --but those were not available back in 2006-8 when most of the writing was done. In my opinion a way to attract professors is to encourage them to use their classes to upgrade the scholarship in the Wiki articles. ~~~~