1. General Algebraic Method Applied to Control Analysis of Complex Engine Types;Boksenbom;N.A.C.A. Report 980,1950
2. Matrix Formulation of Control System Equations;Cruickshank;The Matrix and Tensor Quarterly,1955
3. Mathematical Theory of Multi-Dimensional Servo Systems;Golomb;Jour. Franklin Institute,1952
4. A Method for the Preliminary Synthesis of a Complex Multiple-Loop Control System;Povejsil;A.I.E.E. Applications and Industry,1955
5. Analog Study of Interacting and Non-Interacting Multiple-Loop Control Systems for Turbojet Engines;Pack;N.A.C.A. Note 3112,1954