Larsen, C. R. & Berthelsen, C. (1999).
Le rock. I
Le Danemark (s. 337-339). Ministry of Foreign Affairs DANIDA.
Frøbert, O., Fossgreen, J., SØndergaard-Petersen, J.
, Hede, J. & Bagger, J. P. (1999).
Musculo-skeletal pathology in patients with angina pectoris and normal coronary angiograms.
Journal of Internal Medicine,
245(3), 237-246.
https://doi.org/10.1046/j.1365-2796.1999.0433e.x
Hauge, H. (1999).
Nationalising Science. I R. Chartier & P. C. (red.),
Sciences et langues en Europe: Commission Européenne (s. 159-168). Centre Alexandre Koyré, Etudes en Sciences Sociales.