%0 Journal Article %T Nonlinearity and distance of ancient routes in the Aztec Empire %A Igor Lugo %A Martha G. Alatriste-Contreras %J Archive of "PLoS ONE". %D 2019 %R 10.1371/journal.pone.0218593 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6636719/