APA (7th ed.) Citation

Wirths, K. (1971). Verallgemeinerungen eines Maximumprinzips.

Chicago Style (17th ed.) Citation

Wirths, Klaus-Joachim. Verallgemeinerungen Eines Maximumprinzips. 1971.

MLA (9th ed.) Citation

Wirths, Klaus-Joachim. Verallgemeinerungen Eines Maximumprinzips. 1971.

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