1. D. Reilly, N. Ensslin, H. Smith, Jr., U. S. Nuclear Regulatory Commission, Nureg/CR-5550, LA-UR-90-732 Washington, DC, USA, 1991.
2. J. Skiby, LA-13422-M.
3. A. Ravazzani, R, Jaime, M. Looman. B. Pedersen, P. Peerani, P. Schillebeeckx, M. Thornton, A. Foglio Para, V. Maiorov, in: C. Foggi (Ed.), Proceedings of the 23rd Annual Symposium on Safeguards and Nuclear Material Management, Bruges, Belgium. ESARDA, Rep. EUR 1944 EN, JRC Ispra, Italy, 2001, pp. 181–191.
4. A novel method of quantitative assay of PuBe neutron sources by neutron coincidence technique
5. Neutron spectrum of a plutonium-beryllium source