@article{ahmed-tripathi-smc-2010,
 title ={Security Policies in Distributed CSCW and Workflow Systems},
 author = {Tanvir Ahmed and Anand Tripathi},
 journal = {IEEE Transactions on Systems, Man, Cybernetics -- Part A: Systems and Humans},
 year = {2010},
 issn = {1083-4427},
 volume = {40},
 number = {6},
 month = {November},
 publisher = {IEEE Press},
 address = {Piscataway, NJ, USA}
}