1. Lecture Notes in Computer Science;J Alwen,2017
2. Lecture Notes in Computer Science;M Andrychowicz,2015
3. Aspnes, J., Jackson, C., Krishnamurthy, A.: Exposing computationally-challenged Byzantine impostors. Technical Report YALEU/DCS/TR-1332, Yale University Department of Computer Science, July 2005
4. Back, A.: Hashcash-a denial of service counter-measure (2002)
5. Lecture Notes in Computer Science;C Badertscher,2017