C. Viboud: Prediction of the Spread of Influenza Epidemics by the Method of Analogues. In: American Journal of Epidemiology. 158, 2003, S. 996–1006, doi:10.1093/aje/kwg239.
D. Costagliola, A. Flahault, D. Galinec, P. Garnerin, J. Menares, A. J. Valleron: A routine tool for detection and assessment of epidemics of influenza-like syndromes in France. In: American Journal of Public Health. Band 81, Nummer 1, Januar 1991, S. 97–99, ISSN0090-0036. PMID 1983924. PMC 1404927 (freier Volltext).
D. Costagliola, A. Flahault, D. Galinec, P. Garnerin, J. Menares, A. J. Valleron: A routine tool for detection and assessment of epidemics of influenza-like syndromes in France. In: American Journal of Public Health. Band 81, Nummer 1, Januar 1991, S. 97–99, ISSN0090-0036. PMID 1983924. PMC 1404927 (freier Volltext).