Bibliography Details

Perkins, Jim. Email message to author, August 25, 2020.

The following is a complete listing of all citations using this source:

§ 2.1. Characteristics of Early Questar Telescopes

• Citation No. 1
• Citation No. 2
• Citation No. 3

§ 3.1. Design Changes and Refinements

• Citation No. 4
• Citation No. 5
• Citation No. 6