Birkedal, H., Madsen, D., Mathiesen, R. H., Knudsen, K., Weber, H. P., Pattison, P. & Schwarzenbach, D. (2004).
The charge density of urea from synchrotron diffraction data.
Acta Crystallographica Section A: Foundations and Advances,
60, 371-381.
Birkedal, H., Broomell, C., Khan, R. K., Slack, N., Lichtenegger, H. C., Zok, F., Stucky, G. D. & Waite, J. H. (2005).
The Jaws of Nereis: Microstructure and Mechanical Properties.
Mater. Res. Soc. Symp. Proc.,
874, 2-2.
Andersson, M.
, Birkedal, H., Franklin, N. R., Ostomel, T., Boettcher, S., Palmqvist, A. E. C. & Stucky, G. D. (2005).
Ag/AgCl-Loaded Ordered Mesoporous Anatase for Photocatalysis.
Chemistry of Materials,
17, 1409-1415.