Spatial distribution of graffiti types: a complex network approachEric K. Tokuda, Henrique F. de Arruda, Cesar H. Comin, Roberto M. Cesar, Claudio T. Silva and Luciano da F. CostaEur. Phys. J. B, 94 9 (2021) 192DOI: https://doi.org/10.1140/epjb/s10051-021-00202-y