@inbook{5bfc8246325a433dbb30d3dcd6e3b531,
title = "Specification by refinement and agreement: Designing agent interactions using landmarks and contracts",
author = "H. Weigand and V. Dignum and J.J.C. Meyer and F. Dignum",
year = "2003",
language = "English",
isbn = "3540140093",
series = "LNCS",
publisher = "Springer Verlag",
number = "2577",
pages = "257--269",
editor = "P. Petta and R. Tolksdorf and F. Zambonelli",
booktitle = "Engineering Societies in the Agents World III",
address = "Germany",
}