Gallego Lupiáñez, Francisco2023-06-202023-06-2019891522-261610.1002/mana.19891410106https://hdl.handle.net/20.500.14352/57270The results in this paper are contained in the author's Doctoral Thesis, written under the direction of Professor E. Outerelo.engjournal articlehttp://onlinelibrary.wiley.com/doi/10.1002/mana.19891410106/abstracthttp://www.wiley.com/open access515.1Topología1210 Topología