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Communicated by M. Gurtin
Note. This work was supported in part by the National Science Foundation under Grant NSF75-06332A01.
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Webb, G.F. An age-dependent epidemic model with spatial diffusion. Arch. Rational Mech. Anal. 75, 91–102 (1980). https://doi.org/10.1007/BF00284623
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DOI: https://doi.org/10.1007/BF00284623