Ole Lehrmann Madsen Peter Andersen Mads Brøgger Enevoldsen Integration of BETA with Eclipse - An Exercise in Language Interoperability. 7-25 2004 107 Electr. Notes Theor. Comput. Sci. http://dx.doi.org/10.1016/j.entcs.2004.02.047 db/journals/entcs/entcs107.html#MadsenAE04