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2. Focus group interviewing;Casey,1994
3. Costa, A. I. A., Schoolmeester, D., Dekker, M., & Jongen, W. M. F. To cook or not to cook: a means-end study of motivations behind choice of meal solutions (submitted)
4. Perceptions of Dutch seniors regarding Home Meal Replacements: a focus group study;Costa,2002
5. A consumer-oriented classification system for Home Meal Replacements;Costa;Food Quality and Preference,2001