All links of 4GL

Technology of Object-Oriented Languages and Systems Conference (TOOLS)Technology of Object-Oriented Languages and Systems Conference (TOOLS)
International Conference on Extending Database Technology (EDBT)International Conference on Extending Database Technology (EDBT)
International Conference on Deductive and Object-Oriented Databases (DOOD)International Conference on Deductive and Object-Oriented Databases (DOOD)
International Conference on Object Oriented Information Systems (OOIS)International Conference on Object Oriented Information Systems (OOIS)
International Conference on Conceptual Modeling (ER)International Conference on Conceptual Modeling (ER)
Workshop on Persistent Object Systems (POS)Workshop on Persistent Object Systems (POS)
European Conference on Object-Oriented Programming (ECOOP)European Conference on Object-Oriented Programming (ECOOP)

4GL related site: