@Article{rasmussen83,
  author = {Rasmussen, Jens},
  title  = {Skills, rules, and knowledge: signals, signs, and symbols, and other distinctions in human performance models},
  journal = {IEEE Transactions on Systems, Man and Cybernetics},
  year   = {1983},
  number = {3},
  url    = {http://www.cs.toronto.edu/~nernst/papers/Rasmussen_-_SRK.pdf},

  const  = {\ text}
}