@article{JCGS.419, title={The pre-Hercynian evolution of the Iberian crust on the basis of conventional and ion-microprobe U-Pb data } author={Sch\"{a}fer and Ochsner and Gebauer}, journal={Journal of the Czech Geological Society}, volume={39}, number={1}, pages={92--94}, year=1994, publisher={Czech Geological Society} }