I'm requesting a reference for a Strong Law of Large Numbers theorem for V-statistics (similar to Hoeffding's 1961 paper for U-statistics). That is, I am searching for an almost sure convergence theorem, saying $$ V_n = \frac{1}{n^k}\sum_{i_1=1}^n \cdots \sum_{i_k=1}^n h\left(X_{i_1},...,X_{i_k}\right) \stackrel{\mbox{a.s.}}{\longrightarrow}_n \quad? $$ where $(X_n)$ is an i.i.d. sequence of random elements with values in some space $\mathcal{X}$ and $h:\mathcal{X}^k \to \mathbb{R}$ is a symmetric kernel with some moment requirements.
If Hoeffdings SSLN for U-statistics can be used to derive this result, an explanation of how this is done, would also more than suffice.
I found four references: