Thanks to the work of Alex Tyrba, the no-nonsense introduction to ESB and SOA (original in English) has been translated to Russian. Please find it here:
https://zato.io/docs/intro/esb-soa-ru.html
If you're looking for more straight-to-the-point information on how an Enterprise Service Bus and Service Oriented Architecture should look like, Zato project is the place to learn about it.
Enjoy the read and again, many thanks to Alex!