A
[ACH94] Rajeev Alur, Costas Courcoubetis, and Thomas A. Henzinger. The Observational Power of Clocks. In CONCUR'94, Lecture Notes in Computer Science 836, pages 162-177. Springer-Verlag, August 1994. 
@inproceedings{concur1994-ACH,
  author =              {Alur, Rajeev and Courcoubetis, Costas and Henzinger,
                         Thomas A.},
  title =               {The Observational Power of Clocks},
  editor =              {Jonsson, Bengt and Parrow, Joachim},
  booktitle =           {{P}roceedings of the 5th {I}nternational
                         {C}onference on {C}oncurrency {T}heory
                         ({CONCUR}'94)},
  acronym =             {{CONCUR}'94},
  publisher =           {Springer-Verlag},
  series =              {Lecture Notes in Computer Science},
  volume =              {836},
  pages =               {162-177},
  year =                {1994},
  month =               aug,
}
List of authors