Thierry Coquand, Giovanni Sambin, Jan M. Smith, Silvio Valentini. Inductively generated formal topologies. Annals of Pure and Applied Logic, 124(1-3):71-106, 2003. [doi]
@article{CoquandSSV03,
title = {Inductively generated formal topologies},
author = {Thierry Coquand and Giovanni Sambin and Jan M. Smith and Silvio Valentini},
year = {2003},
doi = {10.1016/S0168-0072(03)00052-6},
url = {http://dx.doi.org/10.1016/S0168-0072(03)00052-6},
researchr = {https://researchr.org/publication/CoquandSSV03},
cites = {0},
citedby = {0},
journal = {Annals of Pure and Applied Logic},
volume = {124},
number = {1-3},
pages = {71-106},
}