Towards a Rigorous Object-Oriented Analysis and Design Method. - Robert B. France; Jean-Michel Bruel; Maria M. Larrondo-Petrie; Emanuel S. Grant; Minika Saksena (ICFEM, 1997)

Extending Aggregation Constructs in UML. - Minika Saksena; Maria M. Larrondo-Petrie; Robert B. France; Matthew P. Evett (UML, 1998)