Sergey Kondratiev (Tyumen University): missing contact

I have long been interested in networks of historians, especially those who are not well known in the U.K., hence my investigations of those interested in the works of Christopher Hill in this country, in eastern Europe and in places like Argentina and Brazil in South America. Admittedly, Marxist historians are rather fewer on the ground here than they were fifty or sixty years ago in British universities. But there are also other groups like Roman Catholic historians working on the Reformations and historical sociologists like Jack Donoghue, Mark Gould and the late Richard Lachman that have attracted my attention. One of the best ways of finding what they have written is to explore the academia.edu site or the CORE database. It was at the former that, several years ago, I came across a Canadian thesis on the exchanges between Porshnev and Lublinskaya on the peasant uprisings in mid-seventeenth France. Subsequently, I exchanged an e-mail or two with a Russian historian, Sergey Kondratiev, who is based at a university on the West Siberian plain in Russia, about the works of Porshnev and Lublinskaya. In fact, there are a number of Russian historians working on the origins, course and consequences of the English Revolution although their works do not usually figure in articles or books published here. They are clearly intelligent people but not really in touch as far as I can determine with British or American students of the early modern period. One of the striking features of their arguments is their continuing subscription to Marxist interpretations and the claims of Christopher Hill and Brian Manning even though they are aware of the ways in which British and American historiography has moved on since the mid-1970s. I did have the idea of sending Kondratiev earlier today a couple of photographs of newspaper reviews on the late-Tudor and late-Stuart/Hanoverian periods. But his e-mail address appears to be inaccessible event though, as far as I can tell, he is still alive and working at the Tyumen University. Why this is so is a puzzle.