Hohmann, Carl; Tipton, Bill Jr.; Dutton, Maureen (1 October 2000). Propellant for the NASA Standard Initiator(PDF). Houston: NASA, Johnson Space Center. p. 1. Archived(PDF) from the original on 11 April 2022.
Hohmann, Carl; Tipton, Bill Jr.; Dutton, Maureen (1 October 2000). Propellant for the NASA Standard Initiator(PDF). Houston: NASA, Johnson Space Center. p. 1. Archived(PDF) from the original on 11 April 2022.