A Case Study on the Success of Introducing General Non-construction Activities for Project Management and Planning Improvement. - Topi Haapio; Jarmo J. Ahonen (PROFES, 2006)

A Framework for Effort Management in Software Projects. - Topi Haapio (EASE, 2007)

A framework for improving effort management in software projects. - Topi Haapio (Softw. Process. Improv. Pract., 2007)

Data mining with software industry project data: A case study. - Topi Haapio; Tim Menzies (IADIS AC (2), 2009)

Software project effort assessment. - Topi Haapio; Anne Eerola (J. Softw. Maintenance Res. Pract., 2010)

Exploring the Effort of General Software Project Activities with Data Mining. - Topi Haapio; Tim Menzies (Int. J. Softw. Eng. Knowl. Eng., 2011)