APA (7th ed.) Citation

Fischbacher, C., Gesztesy, F., & Littlejohn, L. L. (2025). Some Remarks on the Product Formula for Defect Numbers of Closed Operators.

Chicago Style (17th ed.) Citation

Fischbacher, Christoph, Fritz Gesztesy, and Lance L. Littlejohn. Some Remarks on the Product Formula for Defect Numbers of Closed Operators. 2025.

MLA (9th ed.) Citation

Fischbacher, Christoph, et al. Some Remarks on the Product Formula for Defect Numbers of Closed Operators. 2025.