Ralph-Johan Back. On Correct Refinement of Programs. J. Comput. Syst. Sci., 23(1):49-68, 1981.
@article{Back81, title = {On Correct Refinement of Programs}, author = {Ralph-Johan Back}, year = {1981}, tags = {refinement}, researchr = {https://researchr.org/publication/Back81}, cites = {0}, citedby = {0}, journal = {J. Comput. Syst. Sci.}, volume = {23}, number = {1}, pages = {49-68}, }