1. Commission Implementing Regulation (EU) 2015/1998 of 5 November 2015 Laying down Detailed Measures for the Implementation of the Common Basic Standards on Aviation Securityhttps://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:32015R1998&from=EN
2. Interim Recomenndation on Obligatory Hand Hygiene against Transmission of COVID-19,2020
3. Classification of Metallic Targets Using a Walk—Through Metal Detection Portal;Makkonen,2016
4. Detection and classification of concealed weapons using a magnetometer-based portal;Kottler,2009