Using the combinatorial descriptions of stuffle product, we obtain recursive formulas for the stuffle product of multiple zeta values and of multiple zeta-star values. Then we apply the formulas to prove several stuffle product formulas with one or two strings of $z_p$'s. We also describe how to use our formulas in general cases.
"Stuffle Product Formulas of Multiple Zeta Values." Taiwanese J. Math. 22 (3) 529 - 543, June, 2018. https://doi.org/10.11650/tjm/170901