The Gravis Gamepad is a game controller produced by Advanced Gravis Computer Technology[?] similar to that used by the Sega or
Nintendo game systems. The Gamepad consists of a thumb-operated directional
pad and four buttons. Switches allow left- or right-handed operation and
autofire[?] capability. Compatible with all Amiga models, as well as the Atari ST line.
... the "centre," midway between Erdmann and Gabler on the one hand, and the "extreme left" represented by Strauss, Feuerbach and Bruno Bauer.
Of his numerous writings, ...