APA (7th ed.) Citation

Eberhard, W., & Freiling, G. (1991). Zur Eigenwertasymptotik indefiniter Sturm-Liouvillescher Randwertprobleme.

Chicago Style (17th ed.) Citation

Eberhard, Walter, and Gerhard Freiling. Zur Eigenwertasymptotik Indefiniter Sturm-Liouvillescher Randwertprobleme. 1991.

MLA (9th ed.) Citation

Eberhard, Walter, and Gerhard Freiling. Zur Eigenwertasymptotik Indefiniter Sturm-Liouvillescher Randwertprobleme. 1991.

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