@inproceedings{inproceedings, title  = {{IO-refinement in Z}},

 publisher = {{BCS Learning & Development}},

 url = {{http://dx.doi.org/10.14236/ewic/nfm1998.3 }},

 year = {{1998}},

 month = {{1}},

 author = {{Boiten E and Derrick J}},

 doi = {{10.14236/ewic/nfm1998.3}},

 journal = {{Electronic Workshops in Computing}},

 note = {{Accessed on 2024/12/20}}}