TY  - GEN
TI  - pi bands and gap states from optical absorption and electron-spin-resonance studies on amorphous carbon and amorphous hydrogenated carbon films
SN  - 0163-1829
PY  - 1991///
PB  - Physical review. B, Condensed matter
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1103/physrevb.43.2131
ER  -