Becker W. (ed.), Helsing E. (ed.). (1991). Food and health data: their use in nutrition policy-making. Copenhague (Danemark) : OMS. 171 p. (Publications Régionales : Série Européenne, n. 34).
https://www.researchgate.net/profile/Antonia_Trichopoulou/publication/21404774_Comparison_of_dietary_data_from_different_sources_some_examples/links/598c8ee0aca272e57ad1a5fc/Comparison-of-dietary-data-from-different-sources-some-examples.pdf
https://www.researchgate.net/profile/Antonia_Trichopoulou/publication/21404774_Comparison_of_dietary_data_from_different_sources_some_examples/links/598c8ee0aca272e57ad1a5fc/Comparison-of-dietary-data-from-different-sources-some-examples.pdf