Luurtsema, G.
Boersma, H. H.
Schepers, M.
de Vries, A. M. T.
Maas, B.
Zijlma, R.
de Vries, E. F. J.
Elsinga, P. H.
Funding for this research was provided by:
The Netherlands Organisation for Scientific Research (NWO) (project number 91111007)