@article{VirtaKochRoslundetal.2005,
  author    = {P. Virta and Andreas Koch and M. U. Roslund and P. Mattjus and Erich Kleinpeter and L. Kronberg and R. Sjoholm and Karel D. Klika},
  title     = {Synthesis, characterisation and theoretical calculations of 2,6-diaminopurine etheno derivatives},
  year      = {2005},
}