Analysis of urban snow - an excellent method for atmospheric pollutants monitoringHödrejärv, Helvi; Ott, RomanFourth European Conference on Analytical Chemistry : Euroanalysis IV, Helsinki/Espoo, Finland, August 23-28 1981 : book of abstracts1981 / lk. 280

Calcination of Estonian calcareous rocksTrikkel, Andres; Aasa, Priit; Kuusik, Rein, keemikKemia 97 : Finnish Chemical Congress and Exhibition, Helsinki, 11.-13.11.1997 : abstracts1997 / p. 15

Liquid coagulant for water purification from glauconiteKuusik, Rein, keemik; Viisimaa, Ludmilla; Aasamäe, ErnstKemia 94 : Finnish Chemical Congress and Exhibition, Helsinki, 8.-10.11.1994 : abstracts1994 / p. 36