The First International Lake Ladoga Symposium : Proceedings of the First International Lake Ladoga SymposiumHeikki Simola, Andreas Günter · First published 2011Open the Tome
European Large LakesTiina Nõges, Reiner Eckmann, Külli Kangur, Peeter Nõges, Anu Reinart, Gulnara Roll, Heikki Simola, Markku Viljanen · First published 2010Open the Tome
Laulujoutsenen perintöHelena Telkänranta, Heikki Simola, Harri Ajomaa · First published 2008Open the Tome
Sortavala, rajakaupunkiPekka Hakamies, Ilkka Liikanen, Heikki Simola · First published 2001Open the Tome
Proceedings of the 10th International Diatom Symposium Joensun, Finland, Aug. 28-Sept, 2m 1988Heikki Simola · First published 1990Open the Tome
Etelä-Savon asutushistorian paleoekologinen tutkimusHeikki Simola · First published 1988Open the Tome
