1) Hardcore Gabber from the Ruffex label. Nitrogen was the name used by Arno Schoutrop when working together with Stephan Scheltema. Usually Arno teamed up with Patrick van Kerckhoven and used the aliases Myrmidon and Lunalotic. Strangley enough S. Scheltema also used the name Nitrogen for a track he did on his own (one track of the Ruffex 8, namely "Bad Bwoy"). 2) Richard H. Kirk is one of the three founding members of Cabaret Voltaire.

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