(1)
Pańczyk, M.; Bazarnik, J.; Giro, L.; Nawrocki, J.; Krzemińska, E. Application of Handheld XRF Spectrometers for Estimation of Rare Earth Elements Content in Alkaline Intrusions from the East European Craton (NE Poland) – Preliminary Results. geol 2015, 41, 120.