Local uniqueness of $m$-bubbling sequences for the Gel'fand equation

We consider the Gel'fand problem, $$\begin{cases} \Delta w_{\varepsilon}+\varepsilon^2 h e^{w_{\varepsilon}}=0\quad&\mbox{in}\quad\Omega, w_{\varepsilon}=0\quad&\mbox{on}\quad\partial\Omega, \end{cases}$$ where $h$ is a nonnegative function in ${\Omega\subset\mathbb{R}^2}$. Under suitable assumptions on $h$ and $\Omega$, we prove the local uniqueness of $m-$bubbling solutions for any $\varepsilon>0$ small enough.