Aphid Biodiversity under Environmental Change formatIsbn:Softcover 9789401783293 Proceedings of the International Conference 9783110089400 Proceedings of the International Conference held in Graz ) REAKTIONEN NUCLEAR MICROPROBE MEASUREMENT OE THE SPATIAL DISTRIBUTION OE NON METALS IN METALS INFLUENCE DES RECHERCHES SUSCITEES PAR LES PROGRAMMES "MATERIAUX DE REFERENCES" DU BCR SUR LES PROGRES RECENTS DE L'ANALYSE PAR ACTIVATION ET LE ROLE DE CELLE CI DANS CES PROGRAMMES THE ACCURACY OF ION BEAM ANALYSIS FOR THE DETERMINATION OF NONMETALLIC IMPURITIES IN METALS : STOPPING POWER DATA FOR whether aphids will move to different locations but in some years may have an effect very early in the season