APA (7th ed.) Citation

Schieffer, R., & Schgieffer, R. (2005). War Gregor VII. Mönch? Historisches Jahrbuch, 125, 351-362.

Chicago Style (17th ed.) Citation

Schieffer, Rudolf, and Rudolf Schgieffer. "War Gregor VII. Mönch?" Historisches Jahrbuch 125 (2005): 351-362.

MLA (9th ed.) Citation

Schieffer, Rudolf, and Rudolf Schgieffer. "War Gregor VII. Mönch?" Historisches Jahrbuch, vol. 125, 2005, pp. 351-362.

Warning: These citations may not always be 100% accurate.