EG 201 015-1999 Methods for Testing and Specification (MTS); Specification of Protocols and Services; Validation Methodology for Standards Using Specification and Description Language (SDL); Handbook (V1.2.1)
2012EG 201 015-2012 Methods for Testing and Specification (MTS); Standards engineering process; A Handbook of validation methods (V2.1.1)
2011EG 201 015-2011 Methods for Testing and Specification (MTS); Standards engineering process; A Handbook of validation methods (V2.1.1)
1999EG 201 015-1999 Methods for Testing and Specification (MTS); Specification of Protocols and Services; Validation Methodology for Standards Using Specification and Description Language (SDL); Handbook (V1.2.1)
1997EG 201 015-1997 Methods for Testing and Specification (MTS); Specification of Protocols and Services; Validation Methodology for Standards Using SDL; Handbook (V1.2.1)