@article{article82bb714b,
title   = {Nitrogen - related dopant and defect states in cvd diamond},
author = {Rohrer, E and Graeff, C F O and Janssen, R and Nebel, C E and Stutzmann, M and Guttler, H and Zachai, R},
year = {1996},
journal   = {Physical Review B, Solid State}
}