@article{article, title  = {{Proper maps of toposes}},

 url = {{}},

 year = {{2000}},

 month = {{11}},

 author = {{Moerdijk I and Vermeulen JJC}},

 volume = {{148}},

 journal = {{MEM AM MATH SOC}},

 issue = {{705}},

 pages = {{1-+}},

 note = {{Accessed on 2024/12/22}}}