  We present the critical exponents $\nu_{L2}$, $\eta_{L2}$ and $\gamma_{L}$
for an $m$-axial Lifshitz point at second order in an $\epsilon_{L}$ expansion.
We introduced a constraint involving the loop momenta along the $m$-dimensional
subspace in order to perform two- and three-loop integrals. The results are
valid in the range $0 \leq m < d$. The case $m=0$ corresponds to the usual
Ising-like critical behavior.
