Key points are not available for this paper at this time.
RINGSTED, J.; AMTRUP, F.; ASKLUND, C.; BAUNSGAARD, P.; CHRISTENSEN, H. E.; HANSEN, L.; JAKOBSEN, C.; JENSEN, N. K.; MOESNER, J.; RASMUSSEN, J.; REINTOFT, I.; ROLSCHAU, J.; STARKLINT, H.; THOMMESEN, N. and; VRANG, J. Author Information
Ringsted et al. (Sun,) studied this question.