@Article{250,
  title = {Logic-Based Mobile Agent Framework with a Concept of ``Field''},
  author = {Shin-ichi Motomura and Takao Kawamura and Kazunori Sugahara},
  journal = {IPSJ Journal},
  volume = {47},
  number = {4},
  pages = {1230--1238},
  year = {2006},
  month = {4}
}