APA (7th ed.) Citation

Bretschneider, S., Eggeling, C., & Hell, S. (2007). Breaking the diffraction barrier in fluorescence microscopy by optical shelving.

Chicago Style (17th ed.) Citation

Bretschneider, S., C. Eggeling, and S. Hell. Breaking the Diffraction Barrier in Fluorescence Microscopy by Optical Shelving. 2007.

MLA (9th ed.) Citation

Bretschneider, S., et al. Breaking the Diffraction Barrier in Fluorescence Microscopy by Optical Shelving. 2007.