Vector gauge and tensor field

aries0152

While reviewing the paper- Coupling of a vector gauge field to a massive tensor field I found the term-
[tex]2\mu^2 \varepsilon^{ijk} \dfrac{\partial_j}{\partial^2}B_k\dot{B_k}[/tex]
which needed to be integrated by parts. How can I do it?

Note: Here [tex]B_k[/tex] is the space component of antisymmetric tensor field and [tex]\dot{B_k}[/tex] is the time derivative of [tex]B_k[/tex] .