Письма соболезнования по уходу из жизни М.Г. Ревнивцева

— This is very sad news. Mike was a wonderful scientist and a great colleague, with which we worked  construvctively and always in good harmony for many years with INTEGRAL, in the TAC, in the IUG and in a variety of other capacities connected with our observatory. I  had not been aware that he was so gravely ill, and it is very sad to hear htat he has passed away.

Please forward my condolences to his wife and family.

Ed van den Heuvel  

— This is shocking and unexpected for us, not knowing about his illness. I am going to miss him as a good friend and excellent scientist. I always enjoyed interacting with him about our science, our political interests and personally.

My thoughts are with his wife, children and family.

Wim Hermsen

— This is a great loss indeed for the Astrophysics community. Mike was a great scientist and a very pleasant person. My deepest condolences to his family.

J.P. Roques

— We are shocked and sad about this news. Mike was a wonderfully lively, inspiring, constructive, creative, and friend-like colleague in our INTEGRAL community, we also have fond memories especially from the the time while he had a fellowship at the Garching Universe cluster. Please convey to his family our condolences, as well as these extremely positive memories of Mike. Unbelievable.

Roland Diehl (with his friends in Garching)

— please, bring our condolences to the family and all Russian colleagues from the whole IBIS team.

I had the priviledge to work with Mike for some time at the beginning of  the survey and had a constructive exchange with him at his IUG time. As you all know was a very talented scientist, front line men and great person… he left an abyss for all of us.

Pietro Ubertini

— I am shocked hearing the tragic news about Mike. He was an outstanding, very excellent scientist and a very pleasant colleague. I enjoyed every moment of his company. Truly an unbelievable loss.

Please convey my best wishes and regards to his family.

Christoph Winkler