• INSECT DAMAGES IN WOODEN BUILDINGS - (2013)
• FUNGI DAMAGES IN WOODEN BUILDINGS - (2013)
• WOOD TREATMENT AGAINST FUNGAL AND INSECT DAMAGES - (2013)
• THE ESTONIAN GREEN BELT - 2011
• EVOLUTION OF THE BALTIC SEA - 2011
• PALAEOZOIC FOSSILS OF THE CENTRAL BALTIC - 2011
• GEOTOURISM HIGHLIGHTS OF GOTLAND - 2010
• GEOTOURISM HIGLIGHTS OF NORTH ESTONIAN ISLANDS - 2010
• METEORITE IMPACT STRUCTURES IN THE CENTRAL BALTIC - 2009
• GEOTOURISM HIGLIGHTS OF THE SAAREMAA AND HIIUMAA ISLANDS - 2009
• CRYSTALLINE BASEMENT ROCKS IN SW-FINLAND – 2007
• PLATE TECTONICS - 2012
• THE NABALA KARST FIELD – A FICTION OR TRUE – 2012
• MINERAL RESOURCES IN ESTONIA – 2009
• ERRATIC BOULDERS – SILENT WITNESSES OF THE ICE AGE – 2007
• ICE-SHAPED LANDSCAPES IN ESTONIA & SOUTHERN FINLAND – 2007
• LIMESTONE – A NATIONAL STONE OF ESTONIA – 2007
• MIRES IN ESTONIA & SOUTHERN FINLAND – 2007
• OIL SHALE IN ESTONIA – 2007
• THE CLIFFS OF THE ISLAND OF SAAREMAA – 2007
• METEORITE CRATERS IN ESTONIA – 2006
• THE NORTH ESTONIAN KLINT – 2006
• PALAEOZOIC FOSSILS IN ESTONIA – 2005