• European Regional Airport : Factors Influencing EfficencyNõmmik, Allan; Antov, DagoTransport and telecommunication journal2020 / p. 211 - 220 https://doi.org/10.2478/ttj-2020-0017 https://www.scopus.com/sourceid/12400154710 https://www.scopus.com/record/display.uri?eid=2-s2.0-85113878789&origin=inward&txGid=b8b75c58e39d52ad3bca30dba79f9ae2 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=TRANSP%20TELECOMMUN%20J&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000545452400005
• Trends in development of aircraft for regional routes : impact on the European air transportation systemNõmmik, Allan13th Research and Education in Aircraft Design : conference proceedings2019 / p. 161–169 : ill http://doi.org/10.13164/conf.read.2018.16