1. Development of conceptual prototype of new equipment for personal hygiene;IFÖSanitär AB,1981
2. Market analysis concerning IFÖ shower and washing equipment;Institute for Management of Innovation and Technology,1980
3. Personal hygiene and clothes. An investigation of 51 80 year old people receiving nursing aid in their homes. A study for product development;The National Swedish Board of Health and Welfare,1978-1981
4. Personal Hygiene;The Public Health Section of the National Swedish Board of Health and Welfare,1977
5. Technical research based on consumer needs, demands and wishes;The Swedish Board for Technical Development and the National Swedish Council for Consumer Goods Research and Consumer Information,1972