@techreport {AREA-202002-Shi,
   type = {Area Exam},
   author = {Lumin Shi},
   title = {Two Decades of DDoS Attacks and Defenses},
   institution = {University of Oregon, Computer and Information Sciences Department},
   number = AREA-202002-Shi,
   month = 2,
   year = 2020,
   note = {Available at \url{https://www.cs.uoregon.edu/Reports/AREA-202002-Shi.pdf}},
}