Getting started with msarima
$$\phi(B),\prod_{j=1}^{k}\Phi_j!\left(B^{S_j}\right),(1-B)^{d}\prod_{j=1}^{k}\left(1-B^{S_j}\right)^{D_j} y_t | The data | Looking at the cycles | Fitting the model | Checking the residuals | Forecasting | Simulating | References