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2. European Committee for Standardization (CEN). Personal protective equipment against falls from a height—lanyards (Standard No. EN 354:1992). Brussels, Belgium: CEN; 1992.
3. European Committee for Standardization (CEN). Personal protective equipment against falls from a height—lanyards (Standard No. EN 354:2002). Brussels, Belgium: CEN; 2002.
4. European Committee for Standardization (CEN). Personal protective equipment against falls from a height—test methods (Standard No. EN 364:1992). Brussels, Belgium: CEN; 1992.
5. Baszczyński K, Jabłońska A, Zrobek Z. Opracowanie i wdrolenie procedur badań linek bezpieczeństwa stosowanych w sprzęcie chroniącym przed upadkiem z wysokości. [Preparation and bringing into practice test procedures for lanyards protecting against falls from a height] [unpublished report]. Warszawa, Poland: Central Institute for Labour Protection - National Research Institute; 2004.