APA (7th ed.) Citation

Richert, W. R. (1971). Über Scharen nichtlinearer Operatoren.

Chicago Style (17th ed.) Citation

Richert, Walter Robert. Über Scharen Nichtlinearer Operatoren. 1971.

MLA (9th ed.) Citation

Richert, Walter Robert. Über Scharen Nichtlinearer Operatoren. 1971.

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