References about our products are available at following companies:
- Povodí Ohře Chomutov (Catchment basin of the Ohře river) – Mr. Pinta
- Povodí Odry Ostrava (Catchment basin of the Odra river) – Mr. Ing. Pagáč
- Potápěčská stanice v.o.s. Chomutov (Divers station) – Mr. Andrt, General Director www.psvos.cz