Jin Song Dong, Roger Duke. Class Union and Polymorphism. In Christine Mingins, William Haebich, John Potter, Bertrand Meyer, editors, Technology of Object-Oriented Languages and Systems Tools 12: Proceedings of the twelfth International Conference Tools Pacific, Melbourne 1993. Incorporating the proceedings of Tools 9, Sydney 1992. pages 181-190, Prentice Hall, 1993.
@inproceedings{DongD93:0, title = {Class Union and Polymorphism}, author = {Jin Song Dong and Roger Duke}, year = {1993}, researchr = {https://researchr.org/publication/DongD93%3A0}, cites = {0}, citedby = {0}, pages = {181-190}, booktitle = {Technology of Object-Oriented Languages and Systems Tools 12: Proceedings of the twelfth International Conference Tools Pacific, Melbourne 1993. Incorporating the proceedings of Tools 9, Sydney 1992}, editor = {Christine Mingins and William Haebich and John Potter and Bertrand Meyer}, publisher = {Prentice Hall}, isbn = {0-13-124512-0}, }