bibliographic entry 8034394 [be/8034394]
https://w3id.org/oc/corpus/be/8034394

is a

• bibliographic reference

content

• Donald SG, Lang K. Inference with difference-in-differences and other panel data. Rev Econ Stat 2007; 89: 221-33 doi:10.1162/rest.89.2.221.

references

• https://w3id.org/oc/corpus/br/389485