1. Claggett , E.H. Interpreters vs. Compilers for On-line Microcomputers, Control Eng. 1977
2. Copeland , J.R. Process Control: It Isn't EDP!, I.S.A. Industry Oriented Conference 1975
3. Ogdin , Carol A. The Highs and Lows of Microcomputer Programming Languages Instrum. Control Syst. 65 1978