@article{article, title  = {{The Theory of Classification part 11: Adding class types to object implementations}},

 url = {{https://eprints.whiterose.ac.uk/79265/ }},

 year = {{2004}},

 month = {{1}},

 author = {{Simons AJH}},

 doi = {{10.5381/jot.2004.3.3.c1}},

 volume = {{3}},

 journal = {{Journal of Object Technology}},

 issue = {{3}},

 pages = {{7-19}},

 note = {{Accessed on 2024/10/23}}}