@Article{HerlihyR02,
  author = 	 {M. Herlihy and S. Rajsbaum},
  title = 	 {A Classification of Wait-Free Loop Agreement Tasks},
  journal = 	 {Theoretical Computer Science},
  year = 	 2002,
  volume =	 291,
  number =	 1,
  pages =	 {55-77},
  month =	 nov
}