@article{Roberts2015,
  author = {Roberts, Jonathan C. and Headleand, Chris and Ritsos, Panagiotis D.},
  journal = {Visualization and Computer Graphics, IEEE Transactions on},
  title = {Sketching Designs Using the Five Design-Sheet Methodology},
  year = {2016},
  volume = {22},
  number = {1},
  pages = {419-428},
  month = jan
}