Alex Sander,
We Guriev , Igor , in fact, exchanged views on the A. Nakova . Sorry if you astray .
As to your question - perhaps you would be interested in the views expressed in the themes discussed at the forum:
http://forum.artinvestment.ru/showthread.php?t=73721
http://forum/artinvestment.ru/showthread.php?t=96891
However, if you type in 'Search' Alexandra Exter - that's the name of those that might interest you :
Alexandra Exter's "Retrospective"
Art summoned to a duel because of the paintings by Alexandra Exter