Математичний аналіз і диференціальні рівняння вивчаю САМ

Hello, dear friend! Finally a part of this community. It is a little about myself: I am 49 years old. I live in USA, I've married 5 years ago. I have 2 children - a son, and the daughter. I live in a small city in nothern Europe. I'm working at the university. I just wish Im useful at all My blog:...