@article{jReyzinS07,
  author    = {Lev Reyzin and
               Nikhil Srivastava},
  title     = {On the longest path algorithm for reconstructing trees from
               distance matrices.},
  journal   = {Inf. Process. Lett.},
  volume    = {101},
  number    = {3},
  year      = {2007},
  pages     = {98-100}
}