Metody opredeleni︠i︡a pogloshcha︠i︡ushchikh svoĭstv neodnorodnykh sred - Ampilov, ︠I︡U. P. (Akademi︠i︡a nauk SSSR, Kolʹskiĭ filial im. S.M. Kirova, Geol. in-t, 1983)