remolque de otras aeronaves u objetos
https://www.skybrary.aero/index.php/Aircraft_Towing
https://www.lexology.com/library/detail.aspx?g=20bee7d0-fbd1-4c0d-a702-02754ce4c282
http://at-system.eu/system.html
https://laws-lois.justice.gc.ca/eng/regulations/sor-96-433/page-85.html
https://law.moj.gov.tw/ENG/LawClass/LawAll.aspx?pcode=K0090014
http://www5.austlii.edu.au/au/legis/cth/consol_reg/car1988263/s162.html
https://www.lexology.com/library/detail.aspx?g=20bee7d0-fbd1-4c0d-a702-02754ce4c282
http://at-system.eu/system.html
https://laws-lois.justice.gc.ca/eng/regulations/sor-96-433/page-85.html
https://law.moj.gov.tw/ENG/LawClass/LawAll.aspx?pcode=K0090014
http://www5.austlii.edu.au/au/legis/cth/consol_reg/car1988263/s162.html