Hofmann, S. (1986). Rhythmische Grooves und Patterns: Für Drum-Computer, Rhythmcomposer, Acustic- and Electronic Drums and Percussion. Voggenreiter.

Hofmann, Siegfried. Rhythmische Grooves Und Patterns: Für Drum-Computer, Rhythmcomposer, Acustic- and Electronic Drums and Percussion. Bonn: Voggenreiter, 1986.

Hofmann, Siegfried. Rhythmische Grooves Und Patterns: Für Drum-Computer, Rhythmcomposer, Acustic- and Electronic Drums and Percussion. Voggenreiter, 1986.