Alevra, A V*; Thomas, D J (2003) Neutron spectrometry in mixed fields - multi-sphere spectrometers. Radiat. Prot. Dosim., 107 (1-3). pp. 37-72.
Thomas, D J; Alevra, A V* (2002) Bonner sphere spectrometers - a critical review. Nucl. Instrum. Methods Phys. Res. A, Accel. Spectrom. Detec. Assoc. Equip., 476 (1-2). pp. 12-20.
Thomas, D J; Alevra, A V*; Hunt, J B; Schraube, H O E* (1994) Experimental determination of the response of four Bonner sphere sets to thermal neutrons. Radiat. Prot. Dosim., 54 (1). 25 - 31