1. http://www.lemanglobal.com/ - information about new technical solutions on leeds metallurgic plants of Ukrain.

2. http://www.lviv.net - Lvov portal (in Ukrainian).

3.http://www.vibron.ru - All about vibration, articles (in Russian).

4.http://www.vibration.ru - Articles on topic changing of vibration level with changing of other parameters of process (in Russian).

5. http://www.kawasaki.com - Sait of leed Japan metallurgic company.

6. http://www.laborant.ru - Articles on topic of methods of vibration diagnostic (in Russian).

7. http://www.stq.ru - Sait of russian magazins " Standarts and quality","Meters Kontrol" (in Russian).