@article{article, title  = {{Preface.}},

 url = {{}},

 year = {{1991}},

 month = {{1}},

 author = {{Boiten EA and Derrick J and Smith G}},

 journal = {{REFINE@IFM}},

 pages = {{1-1}},

 note = {{Accessed on 2025/11/27}}}