On Access Restriction with Java Wildcards

@article{generics-jot10,
   apice = {GenericsJOT10},
   author = {Viroli, Mirko and Rimassa, Giovanni},
   editor = {Ancona, Davide},
   issn = {1660-1769},
   journal = {The Journal of Object Technology},
   note = {"Special Issue: OOPS Track at ACM SAC 2005"},
   number = 10,
   publisher = {"ETH Swiss Federal Institute of Technology"},
   title = {On Access Restriction with {Java} Wildcards},
   url = {http://www.jot.fm/issues/issue_2005_12/article6},
   volume = 4,
   year = 2005
}