Dear friends! I encounter with a mathematic problem:

Attachment 46606

Int(x BesselI(0,a x) BesselJ(0,b x) BesselJ(0,c x), x=0.. 1),
where a, b, c are all real numbers, BesselI(0,a x) is modified Bessel function of the zero-th order of the first kind.

It is really a hard problem for me to solve it, could anybody help me, please? Thank you in advance!