Sochi Club

I am trying to find the address and phone number of a friend who lives in Sochi that a met in 1978. Over the years I have written to him but in the last 10 years or so have not received any responses. His name is Alexander Nikolayevich Ivanenko. He is 52 years old and has a brother called Michael. If anybody knows Alexander (Sasha) i would love to hear from you, or how i might be able to get his current address and phone number.