Biazrov L. G./ L. A. Pelgunova 2013: Estimation of the proportion of some elements and their distribution on a surface of thallus of lichenized fungus Xanthoria parietina (L.) Th. Fr. using sample-nondestructive ƒÊ-XRF spectrometer M4 Tornado [Ozenka sootnosheniya nekotoryh elementov i ih raspredeleniya na poverkhnosti sloevishcha likhenizirovannogo griba Xanthoria parietina (L.) Th.Fr. ne razrushayushchim obrazets microrentgenofluoreszentnym spektrometrom (μRFS) M4 Tornado . - Principy ekologii2013(2/3): 37-52. [RLL List # 234 / Rec.# 35247]