APA (7th ed.) Citation

SpringerLink (Online service), Oepen, H. P., & Hopster, H. Magnetic microscopy of nanostructures.

Chicago Style (17th ed.) Citation

SpringerLink (Online service), Hans Peter Oepen, and Herbert Hopster. Magnetic Microscopy of Nanostructures.

MLA (8th ed.) Citation

SpringerLink (Online service), et al. Magnetic Microscopy of Nanostructures.

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