Yalvaç, T. Hatice. “On Weak Continuity and Weak \(\delta\)-Continuity”.
Anal. Numér. Théor. Approx.
19, no. 2 (August 1, 1990): 177–183. Accessed April 14, 2025.
https://ictp.acad.ro/jnaat/journal/article/view/1990-vol19-no2-art14
.