bibliographic entry 1399058 [be/1399058]
https://w3id.org/oc/corpus/be/1399058

is a

• bibliographic reference

content

• Wickham, H. (2009). ggpolot2: Elegant Graphics for Data Analysis. 2009. New York, NY: Springer-Verlag.

references

• https://w3id.org/oc/corpus/br/1800145