1. Ausubel D (1968) Educational Psychology: a cognitive view. In: Holt. Rinehart and Winston, New York
2. Ausubel DP (2000) The Acquisition and Retention of Knowledge: a Cognitive View. Dordrect. Kluwer Academic Publishers, Boston
3. Burge JE (1998) Knowledge Elicitation for Design Task Sequencing Knowledge, Master thesis, Worcester Polytechnic Institute, Worcester, Mass, USA
4. Checkland PB (1978) The origins and nature of hard systems thinking. J Appl Syst Anal 5:99–110
5. Checkland P (1981) Systems Thinking, Systems Practice. Wiley, Chichester