@article{SprinzWolinskyNahmias2004,
  author    = {Sprinz, Detlef F. and Wolinsky-Nahmias, Yael},
  title     = {Introduction : Methodology in international relations research},
  isbn      = {0-472-06861-X},
  year      = {2004},
  language  = {en}
}
@article{SprinzWolinskyNahmias2004,
  author    = {Sprinz, Detlef F. and Wolinsky-Nahmias, Yael},
  title     = {Conclusion : Multimedhod Research},
  isbn      = {0-472-06861-X},
  year      = {2004},
  language  = {en}
}