Function and Specificity of γ/δ T CellsKlaus Pfeffer, Klaus Heeg, Hermann Wagner, Gert Riethmüller · First published 1991 · Latest edition 2012Open the Tome
Kinder der NibelungenKlaus Heinrich, Heiner Müller, Günther Heeg, Stefan Schnabel, K. D. Wolff · First published 2007Open the Tome
