@article{PaakkariPaakkariSirenetal.1990,
  author    = {P. Paakkari and I. Paakkari and Anna-Leena Sir{\´e}n and G. Feuerstein},
  title     = {Respiratory and locomotor stimulation by low doses of dermorphin - a Mu\(_1\)-receptor mediated effect},
  year      = {1990},
}