Gn. Afanasiev et al., EXPLICIT REALIZATIONS OF STATIC AND NONSTATIC SOLENOIDS AND CONDITIONS FOR THEIR EXISTENCE, Journal of physics. A, mathematical and general, 26(13), 1993, pp. 3279-3284
The conditions are found under which the static and non-static charge
and current densities generate the electromagnetic field confined to t
he finite region of space. The prescriptions are given for the constru
ction of static magnetic solenoids of an arbitrary geometrical form.