DIN EN 15221-4:2011-12 Facility Management - Part 4: Taxonomy, Classification and Structures in Facility Management; German version EN 15221-4:2011 / Note: To be replaced by DIN EN 15221-4 (2018-12).
2011DIN EN 15221-4:2011-12 Facility Management - Part 4: Taxonomy, Classification and Structures in Facility Management; German version EN 15221-4:2011 / Note: To be replaced by DIN EN 15221-4 (2018-12).
2011DIN EN 15221-4:2011 Facility Management - Part 4: Taxonomy, Classification and Structures in Facility Management; German version EN 15221-4:2011