Stochastic integration with respect to additive functionals of zero   quadratic variation
  We consider a Markov process $X$ associated to a nonnecessarily symmetric Dirichlet form $\mathcal{E}$. We define a stochastic integral with respect to a class of additive functionals of zero quadratic variation and then we obtain an It\^{o} formula for the process $u(X)$, when $u$ is locally in the domain of $\mathcal{E}$. 
Alexander Walsh
math.PR math.ST stat.TH