[Elrick]

Good day!
Expertise necessary to make a number of works , mostly color graphics, something something - oil. The list of sponsors is as follows:

Dobuzhinsky
Yakulov
Osmyorkin (later 40s years)
D. Shterenberg
Dmitry Mitrokhin
Kuznetsov
Puni
Morgunov

Please advise if the most right experts to whom you can ask for documents. Individually or in blocks )
By " right" I mean those whose papers have a weight on the antiques market.
Thank you.