@Article{JAKUBIECDATA03,
  author = {Jakubiec, Maciej and Materny, Micha and Kotulski, Zbigniew},
  title  = {On the Data Model for Dynamic Hierarchical Scheduling Problem},

  year   = {2003},
  number = {},
  url    = {http://citeseer.ist.psu.edu/677609.html},

  const  = {\ text}
}