In his book Ntirlis gives a specific opening line in Chapter 1b, which, as he puts it, "angles" for a Tartakower setup. He calls it the Romanishin Variation of the Tartakower Defence. He also provides several example games featuring the line (pp.34-41). However beyond that there is no other coverage of the Tartakower Variation of the QGD (that I am aware of - I haven't scoured every last page of the book!).
These are the featured example games he annotates.....(they all end in draws)...
Ahmed Adly vs Vladimir Kramnik, Baku Olympiad 2016
https://www.chessgames.com/perl/chessgame?gid=1832619
Jernej Spalir vs Tigran S. Petrosyan, Katowice 2014
https://old.chesstempo.com/gamedb/game/3650274
Ivan Cheparinov vs Michael Adams, Plovdiv 2010
https://www.chessgames.com/perl/chessgame?gid=1598662
The Ntirlis book is certainly not for beginners but is half way a middle game book with the main lines having a explaining ideas chapter, followed by a chapter on the theoretical lines. For example the sections on the exchange variation, explain some of the typical ideas in that structure. There is also one specific line in Kramnik's improved orthodox h6, Nb-d7 and c5 that is covered which transposes to the tartakower. I am not very sure, what is supposed to be white's most testing approach in tartakower, but the line mentioned is one of the better ones.