R.E. Boltnev, V.V. Khmelenko, and D.M. Lee, Stabilization of H and D atoms in krypton-helium nanocondensates, Low Temp. Phys. 36, (2010) [Fiz. Nizk. Temp. 36, 484-494, (2010)] DOI: https://doi.org/10.1063/1.3432245.