The factorization of $Q(L(x_1), ..., L(x_k))$ over a finite field where $Q(x_1,...,x_k)$ is of first degree and L(x) is linear
Tom 32 / 1977
Acta Arithmetica 32 (1977), 407-420
DOI: 10.4064/aa-32-4-407-420