Referências

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   Rowlingson, B., Diggle, P., adapted, packaged for R by Roger Bivand, pcp functions by Giovanni Petris & goodness of fit by Stephen Eglen (2006). splancs: Spatial and Space-Time Point Pattern Analysis. R package version 2.01-17.
http://www.maths.lancs.ac.uk/ rowlings/Splancs/