Editing Relaxed stability (section)

== Citations ==
{{reflist |
<ref name= c>{{Cite book|last= Villard|first= Henry Serrano|title= Contact!: the story of the early aviators|year = 2002 | publisher =Dover Publications|location= Mineola, NY |isbn= 978-0-486-42327-2|pages= 39–53|url = https://books.google.com/books?id=tDmR7DhM_uEC&pg=PA40}}</ref>
<ref name= l>{{Cite book|last= Letcher|first= Piers|title= Eccentric France: the Bradt guide to mad, magical and marvellous France|year=2003|publisher=Bradt Travel Guides|location=Chalfont St. Peter, England|isbn = 978-1-84162-068-8 |pages=[https://archive.org/details/isbn_9781841620688/page/38 38]–39|url= https://archive.org/details/isbn_9781841620688|url-access= registration}}</ref>}}