AaronT, thanks for the answer.
Else for the information the reference to the polish site -
http://akwa-mania.mud.pl/rosliny/an%20gilleti.html
I have a plant, which I bought under name An. 'Nangi'.
But I have bases to doubt competence of the seller.
This plant from my collection, grown up over water -

(Photo from 23.04.08 )
I saw samples of this plant in height of 1 metre, which have been grown up in the closed pool.
It much more, than height of plant Anubias gilletii.
Therefore I very much doubt that this hybrid plant on the basis of Anubias gilletii.
Me any information about Robert Gasser and its firm still interests.