APA (7th ed.) Citation

Khonina, S. N., & Ustinov, A. V. Sharper Focal Spot for a Radially Polarized Beam Using Ring Aperture with Phase Jump. Wiley.

Chicago Style (17th ed.) Citation

Khonina, Svetlana N., and Andrei V. Ustinov. Sharper Focal Spot for a Radially Polarized Beam Using Ring Aperture with Phase Jump. Wiley.

MLA (9th ed.) Citation

Khonina, Svetlana N., and Andrei V. Ustinov. Sharper Focal Spot for a Radially Polarized Beam Using Ring Aperture with Phase Jump. Wiley.

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