• Sulphation of Estonian calcareous rocksTrikkel, Andres; Aasa, Priit; Kuusik, Rein, keemikESTAC-7 : 7th European Symposium on Thermal Analysis and Calorimetry, Aug. 30 - Sept. 4, 1998, Balatonfüred, Hungary : book of abstracts1998 / p. 324