1 . OFFICIALS - CONDITIONS OF EMPLOYMENT OF OTHER SERVANTS OF THE EUROPEAN COMMUNITIES - TEMPORARY STAFF - AUXILIARY STAFF - DIFFERENCE - WHETHER OR NOT POST IS PERMANENT - PRECARIOUS NATURE OF CONTRACTS FOR THE EMPLOYMENT OF AUXILIARY STAFF ( CONDITIONS OF EMPLOYMENT OF OTHER SERVANTS OF THE EUROPEAN COMMUNITIES , ARTS 2 AND 3 ) 2.OFFICIALS - PENSIONS - CALCULATION OF YEARS OF PENSIONABLE SERVICE - INCLUSION OF PERIODS OF SERVICE COMPLETED AS A MEMBER OF THE AUXILIARY STAFF - CONDITIONS - ONUS OF PROOF ( STAFF REGULATIONS OF OFFICIALS , ANNEX VIII , ART . 3 ( C ); CONDITIONS OF EMPLOYMENT OF OTHER SERVANTS OF THE EUROPEAN COMMUNITIES , ART . 2 ( A ) AND ( B ))