Drumm, D. W., Budi, A., Per, M. C., Russo, S. P., & L Hollenberg, L. C. (2013). Ab initio calculation of valley splitting in monolayer δ-doped phosphorus in silicon. Springer.

Drumm, Daniel W., Akin Budi, Manolo C. Per, Salvy P. Russo, and Lloyd C. L Hollenberg. Ab Initio Calculation of Valley Splitting in Monolayer δ-doped Phosphorus in Silicon. Springer, 2013.

Drumm, Daniel W., et al. Ab Initio Calculation of Valley Splitting in Monolayer δ-doped Phosphorus in Silicon. Springer, 2013.