diff --git a/_bibliography/pint.bib b/_bibliography/pint.bib
index 202d3715..87415f9a 100644
--- a/_bibliography/pint.bib
+++ b/_bibliography/pint.bib
@@ -8913,6 +8913,20 @@ @article{SunEtAl2026
 	year = {2026},
 }
 
+@article{SunEtAl2026b,
+	author = {Sun, Tao and Li, Tian-Yi and Sun, Hai-Wei},
+	doi = {10.1007/s10915-026-03391-9},
+	issn = {1573-7691},
+	journal = {Journal of Scientific Computing},
+	month = {July },
+	number = {3},
+	publisher = {Springer Science and Business Media LLC},
+	title = {All-at-once Implementation For Subdiffusion Equation With Time Nonuniform Mesh},
+	url = {http://dx.doi.org/10.1007/s10915-026-03391-9},
+	volume = {108},
+	year = {2026},
+}
+
 @article{Tang2026,
 	author = {Tang, Changyang},
 	doi = {10.1007/s10915-026-03336-2},