First, I was looking for cities that are suitable for staying for long, and the key requirement is to have an opportunity to teach my possible children Russian, so I restricted myself to cities where Russkiy Mir Foundation is present. Second, I was afraid of big climate changes, so I decided to find something to the North. Xi'an looked like a good choice. My university has bilateral relationships with universities in Daliang and Shihezi, and I might receive some support if I choose to enter them, but I decided that going to Xi'an might be also fruitful. And yet another reason was the information that Shanxi is comparably poor Chinese province. It is harder to get into financial problems in poor regions, and that matters since my Altai Krai is also one of the poorest regions in Russia, so my relatives cannot help much. I was not doing estimations for every city. Starting from some moment, I decided to stick with Xi'an. I opened CSC Laihua and found about 9 universities matching my desired specialization. I visited English versions of their websites and read its contents. Some of them had awful English versions, and I think they were not very interested in foreign students, so I hashed them out. I was comparing remaining ones and leaving notes for myself. I have a project that I am willing to work on, and I was comparing websites with my expectations. My project is based on abandoned IBM software called System Object Model and less robust, but more alive Objective-C 2.0, and I think field of my interest is called middleware. NWU has so called "Kingdee Middleware Technology Center", explicitly containing middleware in its name. It can probably be helpful for me. Also, I was surprised to see Niklaus Wirth here: https://ist.nwu.edu.cn:8081/index.php If Wirth visited NWU, this is a sign of quality for me. Wirth visited NSU (Novosibirsk State University) in 2006 or so, and I was there, but English version of NSU does not reflect this, so I've got a feeling that I am on the right track. Wirth is more welcome in NWU than in NSU. I like Ada programming language which is Modula-2 descendant. Yet another requirement (or desired option) was relationship to Chinese Academy of Science. If I will be able to work on my project, as I see it, it should be done in scientific research environment, so being close to CAS might help.