@article{10_2298_FIL2317717W,
     author = {Xiu-Yun Wu and Hui-Min Zhang and Yu-Jie Liu},
     title = {L-(resp. concave) down-directed convergence relation spaces and {L-(resp.} concave) filter convergence spaces},
     journal = {Filomat},
     pages = {5717 },
     year = {2023},
     volume = {37},
     number = {17},
     doi = {10.2298/FIL2317717W},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.2298/FIL2317717W/}
}