Corrigendum to "Hardy Spaces $H_{\mathcal{L}}^1({\mathbb{R}}^n)$ Associated to Schr\"odinger Type Operators $(-\mathrm{\Delta }{)}^2+V^2$" [Houston J. Math 36 (4) (2010), 1067-1095]

We rectify an incorrect citation of the reference in obtaining the Gaussian upper bound for heat kernels of the Schr"odinger type operators $(-\mathrm{\Delta }{)}^2+V^2$.