Data according to § 5 TMG Germany:
Sergey Chertkov
Bargfredestrasse 4f
22587 Hamburg
Germany

I'm a freelance engineer according to §18 Abs. 1 Number 1 EStG Germany
TAX identification number: DE358559810

Contact data
engineering@sergeychertkov.com
www.sergeychertkov.com

Responsible for the content according to § 55 Abs. 2 RStV Germany:
Sergey Chertkov