Here is an example citation of the flesh:

Goodale et al. “The Cactus Framework and Toolkit: Design and Applications.” Vector and Parallel Processing – VECPAR’2002, 5th International Converence, Lecture Notes in Computer Science. Berlin:Springer, 2003. <http://edoc.mpg.de/3341>.

The BibTeX entry:

  author =       {Tom Goodale and Gabrielle Allen and Gerd Lanfermann
                  and Joan Mass{\'o} and Thomas Radke and Edward
                  Seidel and John Shalf},
  title =        {The {Cactus} Framework and Toolkit: Design and
  booktitle =    {Vector and Parallel Processing -- VECPAR'2002, 5th
                  International Conference, Lecture Notes in Computer
  year =         2003,
  address =      {Berlin},
  publisher =    {Springer},
  url =          {http://edoc.mpg.de/3341},