1. Need for National Policy for the Use of Underground Space;American Society of Civil Engineers (ASCE),1973
2. The Use of Underground Space to Achieve National Goals;Baker,1972
3. Underground Space Design: a guide to subsurface utilization and design for people in underground spaces;Carmody,1993
4. Is there a future for the use of underground space in the Netherlands? An integral assessment method for strategic decision-making about spatial development;Edelenbos,1997
5. Strategic study on the utilization of underground space in the Netherlands;Edelenbos;Tunnelling and Underground Space Technology,1998