APA (7th ed.) Citation

Nicklas, H. E., Fürtig, W., Seifert, W., & Stahl, O. (1998). Image motion and flexure compensation of the FORS spectrographs. Optical astronomical instrumentation.

Chicago Style (17th ed.) Citation

Nicklas, Harald E., Walter Fürtig, Walter Seifert, and Otmar Stahl. "Image Motion and Flexure Compensation of the FORS Spectrographs." Optical Astronomical Instrumentation 1998.

MLA (9th ed.) Citation

Nicklas, Harald E., et al. "Image Motion and Flexure Compensation of the FORS Spectrographs." Optical Astronomical Instrumentation, 1998.

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