Solid neon moderator for producing slow positrons, Gullikson EM, Mills AP, Appl. Phys. Lett., Volume 49, Number 17, pp. 1121-1123, 10/27/1986
Positron Dynamics in Rare-Gas Solids, Gullikson EM, Mills AP, Physical Review Letters, Volume 57, Number 3, pp. 376-379, 7/21/1986
Observation of Low-Energy mu+ Emission from Solid Surfaces, Harshman DR, Warren JB, Beveridge JL, Kendall KR, Kiefl RF, Oram CJ, Mills AP, Crane WS, Physical Review Letters, Volume 56, Number 26, pp. 2850-2853, 6/30/1986