On the validation and legitimisation of an information system-some theoretical considerations and a case study. - O. Petkova; D. Petkov (South Afr. Comput. J., 2000)

A multiple perspectives evaluation of the factors affecting software development productivity in an outsourced IT project. - O. Petkova; J. Dewald Roode; D. Petkov (South Afr. Comput. J., 2000)

Assisting Small Information Technology Companies Identify Critical Success Factors in Web Development Projects. - D. Petkov; G. Fry; O. Petkova; Marianne J. D'Onofrio (AMCIS, 2003)

Editorial - Special Issue: Soft Systems Approaches to Information and Communication Technology problems. - D. Petkov; O. Petkova (Int. J. Comput. Syst. Signals, 2003)

On the Elements of a Pluralist Systemic Approach for the Evaluation of Factors Affecting Software Development Productivity. - O. Petkova (AMCIS, 2004)

Editorial. - D. Petkov; O. Petkova (Int. J. Comput. Syst. Signals, 2004)

Mixing Multiple Criteria Decision Making with soft systems thinking techniques for decision support in complex situations. - D. Petkov; O. Petkova; Theo N. Andrew; T. Nepal (Decis. Support Syst., 2007)

Using Projects Scoring Rubrics to Assess Student Learning in an Information Systems Program. - Doncho Petkov; Olga Petkova; Marianne J. D'Onofrio; A. Tomasz Jarmoszko (J. Inf. Syst. Educ., 2008)

The Work System Method And Soft Systems Methodology - Some Comparisons. - Olga Petkova; Doncho Petkov (UKAIS, 2012)

Evaluating Sustainability and Greening Methods: A Conceptual Model for Information Technology Management. - A. Tomasz Jarmoszko; Marianne J. D'Onofrio; Joo Eng Lee-Partridge; Olga Petkova (Int. J. Appl. Logist., 2013)

On the Suitability of Soft Systems Methodology and the Work System Method in Some Software Project Contexts. - Doncho Petkov; Steven Alter; Olga Petkova; Theo N. Andrew (Int. J. Inf. Technol. Syst. Approach, 2013)

On Some Lessons from Modeling Contexts in Complex Problem Solving in Information Technology. - D. Petkov; O. Petkova; Theo N. Andrew (J. Inf. Technol. Res., 2013)