págs. 16-24
págs. 25-27
págs. 28-29
Managing Health & Safety Risks (No. 59): Human error
The Institution of Structural Engineers' Health and Safety Panel
págs. 30-31
Temporary Works Toolkit.: Part 8: Use of modular hydraulic propping systems for the temporary support of deep excavations
págs. 32-34
págs. 36-41
págs. 42-44
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