Int. Chemical Recovery Conference, Tampa, Florida 1998: Poster: Analytical methods for determination of metals, silicon and phosphorous in kraft pulp mill samples.
ABTCP-PI Conference ( Associacao Brasileira Tecnica de Celulose e Papel ja Paperi-insinööriyhdistys), Sao Paulo, Brazil, 2005: Esitelmä Calcium carbonate scaling in black liquor evaporation.
Int. Chemical Recovery Conference, Quebec, 2007: Esitelmä Calcium carbonate scaling in black liquor evaporation.