Adaptation of the Critical Incident Technique to Requirements Engineering in Public Health. - Christina Ölvingson; Niklas Hallberg; Toomas Timpka; Robert A. Greenes (MedInfo, 2001)

Using the critical incident technique to define a minimal data set for requirements elicitation in public health. - Christina Ölvingson; Niklas Hallberg; Toomas Timpka; Robert A. Greenes (Int. J. Medical Informatics, 2002)

Ethical issues in public health informatics: implications for system design when sharing geographic information. - Christina Ölvingson; Jonas Hallberg; Toomas Timpka; Kent Lindqvist (J. Biomed. Informatics, 2002)