APA (7th ed.) Citation

Sommer, M., Tschirnich,J, & Tschirnich, J. Length measurements in the nanometer-range using a He-Ne/J2 - "Measuring-Laser".

Chicago Style (17th ed.) Citation

Sommer, M., Tschirnich,J, and J. Tschirnich. Length Measurements in the Nanometer-range Using a He-Ne/J2 - "Measuring-Laser".

MLA (9th ed.) Citation

Sommer, M., et al. Length Measurements in the Nanometer-range Using a He-Ne/J2 - "Measuring-Laser".

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