Beam extraction with electron pick-up.

MLA

Poth, H. “Beam Extraction with Electron Pick-Up.” Zeitschrift Für Physik, vol. 326, no. 4, Apr. 1987, pp. 483–86. EBSCOhost, https://doi.org/10.1007/BF01289552.

APA

Poth, H. (1987). Beam extraction with electron pick-up. Zeitschrift Für Physik, 326(4), 483–486. https://doi.org/10.1007/BF01289552

Chicago

Poth, H. 1987. “Beam Extraction with Electron Pick-Up.” Zeitschrift Für Physik 326 (4): 483–86. doi:10.1007/BF01289552.