2014DIN EN 16481:2014-09 Timber stairs - Structural design - Calculation methods; German version EN 16481:2014 / Note: Applies in conjunction with DIN EN 15644 (2009-03).
2014DIN EN 16481:2014 Timber stairs - Structural design - Calculation methods; German version EN 16481:2014
2012DIN EN 16481 E:2012 Draft Document - Timber stairs - Structural design - Calculation methods; German version prEN 16481:2012