APA (7th ed.) Citation

Schmidt, A., & Wingberg, K. (1992). On the fundamental group of a smooth arithmetic surface: Dedicated to Helmut Koch on his 60th birthday. Mathematische Nachrichten, 159, . https://doi.org/10.1002/mana.19921590103

Chicago Style (17th ed.) Citation

Schmidt, Alexander, and Kay Wingberg. "On the Fundamental Group of a Smooth Arithmetic Surface: Dedicated to Helmut Koch on His 60th Birthday." Mathematische Nachrichten 159 (1992). https://doi.org/10.1002/mana.19921590103.

MLA (9th ed.) Citation

Schmidt, Alexander, and Kay Wingberg. "On the Fundamental Group of a Smooth Arithmetic Surface: Dedicated to Helmut Koch on His 60th Birthday." Mathematische Nachrichten, vol. 159, 1992, https://doi.org/10.1002/mana.19921590103.