APA (7th ed.) Citation

Duc, A., Vaudenay, S., & Archives, T. P. S. U. C. HELEN: A Public-key Cryptosystem Based on the LPN and the Decisional Minimal Distance Problems. http://infoscience.epfl.ch/record/187368/files/helen-full.pdf.

Chicago Style (17th ed.) Citation

Duc, Alexandre, Serge Vaudenay, and The Pennsylvania State University CiteSeerX Archives. "HELEN: A Public-key Cryptosystem Based on the LPN and the Decisional Minimal Distance Problems." Http://infoscience.epfl.ch/record/187368/files/helen-full.pdf .

MLA (9th ed.) Citation

Duc, Alexandre, et al. "HELEN: A Public-key Cryptosystem Based on the LPN and the Decisional Minimal Distance Problems." Http://infoscience.epfl.ch/record/187368/files/helen-full.pdf, .