Tiginyanu, I. M. and Ursaki, V. V. and Zalamai, V. V. and Langa, S. and Hubbard, S. M. and Pavlidis, Dimitris and Föll, H. (2003):
Luminescence of GaN nanocolumns obtained by photon-assisted anodic etching.
In: Applied Physics Letters, 83 (8), pp. 1551-1553. AIP Publishing, ISSN 0003-6951,
DOI: 10.1063/1.1605231,
[Article]

Stevens-Kalceff, M. A. and Tiginyanu, I. M. and Langa, S. and Föll, H. and Hartnagel, H. L. (2001):
Correlation between morphology and cathodoluminescence in porous GaP.
89, In: Journal of applied physics, [Article]