  We consider operator scaling $\alpha$-stable random sheets, which were
introduced in [12]. The idea behind such fields is to combine the properties of
operator scaling $\alpha$-stable random fields introduced in [6] and fractional
Brownian sheets introduced in [14]. We establish a general uniform modulus of
continuity of such fields in terms of the polar coordinates introduced [6].
Based on this, we determine the box-counting dimension and the Hausdorff
dimension of the graph of a trajectory of such fields over a non-degenerate
cube $I \subset Rd$.
