1. Volume of intersection of two cones;Balogun;Radiat. Phys. Chem.,2000
2. Berger, M.J., Hubbel, J.H., 1987. NBSIR 87-3597, MD 20899.
3. Comparison of beta-ray and gamma-ray transmission methods for measurement of frost density distribution;Bong;Exp. Therm. Fluid Sci.,1991
4. Briesmeister, J.F. (Ed.), 2000. MCNP™, LA-13709-M Manual.
5. Non-destructive measurement of moisture in building materials by Compton scattering of gamma rays;Bucurescu;Rom. Rep. Phys.,2011