John Cook; Valery Aksamentov; Thomas Hoffman; Wes Bruner (1 January 2011). "ISS Interface Mechanisms and their Heritage"(PDF). NTRS. Houston, Texas: Boeing. Archived(PDF) from the original on 29 April 2015. Retrieved 31 March 2015.
John Cook; Valery Aksamentov; Thomas Hoffman; Wes Bruner (1 January 2011). "ISS Interface Mechanisms and their Heritage"(PDF). NTRS. Houston, Texas: Boeing. Archived(PDF) from the original on 29 April 2015. Retrieved 31 March 2015.