@article{Fritz2010,
  author    = {Manfredo A. Fritz},
  title     = {Las especies argentinas y paraguayas del g{\´e}nero Cerceris Latreille, des los grupos "pollens" y "rugulosa" (Hymenoptera: Sphecidae)},
  journal   = {Insecta mundi : a journal of world insect systematics},
  volume    = {03},
  number    = {3-4},
  pages     = {261 -- 270},
  year      = {2010},
}