Video: The World of Underground Opportunities


Urban Underground Space -PDF

Sustainable Property Development in Helsinki
Author: Ilkka Vähäaho, City of Helsinki, Real Estate Department, Geotechnical Division
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Rock – Sound of Countless Opportunities –publication

(ISBN 978-952-67077-1-6)
Price: 20 € + shipping costs


The Fourth Wave of Rock Construction

Editors: Kimmo Rönkä, Jouko Ritola
ISBN 951-96180-1-5 WSOY, Porvoo 1997.
Price: 20 € + shipping costs