Compiling Horn-Clause Rules in IBM's Business System 12 and Early Experiment in Declarativeness. - Ghica van Emde Boas-Lubsen; Peter van Emde Boas (SOFSEM, 1998)

Business Component Prototyper for SanFrancisco: An experiment in architecture for application development tools. - Ghica van Emde Boas-Lubsen (IBM Syst. J., 2000)