Soft systems methodology to information systems: a Wittgensteinian approach. - Frank Hutson Gregory (Inf. Syst. J., 1993)

A logical analysis of soft systems modelling : implications for information system design and knowledge based system design. - Frank Hutson Gregory (1993)

Cultural Problems in Applying SSM for IS Development. - Trevor T. Moores; Frank Hutson Gregory (J. Glob. Inf. Manag., 2000)