Who has information about the artist?

[мистер-у]

I encountered this problem for 4 years nazad.Kartina 99 * 66cm, oil on canvas, depicts two naked devushki.Sleva below signature "I. Volkov 1993, calligraphic signature affixed, on" wet colorful layer. I tested this work in the State Tretyakov Gallery , there is "Portrait of a Girl" in an oval, but it is not the Volkov.
In the catalog "Russian artists salon is Joseph Volkov," Landscape "with the same signature as on my kartine.Biografiya Joseph Volkova is in reference Solov'eva, but there is another signature.
I believe that the AI Volkov, who I have and Joseph Volkov, who in reference Solovyov, the same artist.