@InProceedings{DotPatSum09,
  author = "David Doty and Matthew J. Patitz and Scott M. Summers",
  title = "Limitations of Self-Assembly at Temperature 1",
  booktitle = "Proceedings of The Fifteenth International Meeting on DNA Computing and Molecular Programming",
  publisher =   {Springer},
  series =  {Lecture Notes in Computer Science},
  year = 2009
}