more reliable recourses plz 
its just some book without links, and many chinese stuff. This is english wiki. I also think this a racist article written here, its only showing what russia as an country did in history but it doesnt stands for the russian minority living in china, seriously how would it be if would make an article of chinese american and just talking about relation between china and russia instead of the people who lived in usa??? Its racist bullcrap, i want to know how it is to life as russian in china, how culture interact etc.