TY - JOUR AU - Xiu-Yun Wu AU - Qi Liu AU - Chun-Yan Liao AU - Yan-Hui Zhao TI - L-topological derived internal (resp. enclosed) relation spaces JO - Filomat PY - 2021 SP - 2497 VL - 35 IS - 8 UR - http://geodesic.mathdoc.fr/articles/10.2298/FIL2108497W/ DO - 10.2298/FIL2108497W LA - en ID - 10_2298_FIL2108497W ER -