Verfied Software: Theories, Tools and Experiments 
(with Tony Hoare) 
Verified software: theories, tools, experiments.
Vision of a Grand Challenge project (A position paper). LNCS 4171,
  pp 1--18, Springer Verlag.
(with Tony Hoare) 
Frequently asked Questions about the Project.
(with C.A.R. Hoare) 
Preface to special issue on software verification. ACM Computing Surveys,
Volume 41 ,  Issue 4 (October 2009), Article No.: 18. 
(with C.A.R. Hoare, Gary T. Leavens, Natarajan Shankar) 
The verified software initiative: A manifesto. ACM Computing Surveys,
Volume 41 ,  Issue 4 (October 2009), Article No.: 22.