Friis, E. M.
, Pedersen, K. R., Schönenberger, J., Schönenberger, J. (red.), Balthazar, M. (red.) & Matthews, M. (red.) (2002).
A new genus of Normapolles producing flowers from the Late Cretaceous of Portugal. (s. 0-0). Institute of Systematic Botany and Botanical Garden, University of Zurich, Switzerland.
Friis, H., Poulsen, M. L. K., Svendsen, J. B. & Hamberg, L. (2007).
Discrimination of density flow deposits using elemental geochemistry - implications for subtle provenance differentiation in a narrow submarine canyon, Palaeogene, Danish North Sea.
Marine and Petroleum Geology,
24(4), 221-235.
Friis, E. M., Crane, P. R.
, Pedersen, K. R., Bengtson, S., Donoghue, P. C. J., Grimm, G. W. & Stamponi, M. (2007).
Phase-contrast X-ray microtomography links Cretaceous seeds with Gnetales and Bennettitales.
Nature,
450, 549-552.
Friis, H., Sylvestersen, R. L., Nebel, L. N., Poulsen, M. L. K. & Svendsen, J. B. (2010).
Hydrothermally influenced cementation of sandstone: an example from deeply buried Cambrian sandstones from Bornholm, Denmark.
Sedimentary Geology,
227(1-4), 11-19.
https://doi.org/10.1016/j.sedgeo.2010.03.002
Friis, E. M.
, Pedersen, K. R., von Balthazar, M., Grimm, G. W. & Crane, P. R. (2009).
Monetianthus mirus gen. et sp. Nov., a nymphaealean flower from the Early Cretaceous of Portugal.
International Journal of Plant Sciences,
170(8), 1086-1101.
