@article{Gunnellini:20143B, author = "Gunnellini, Paolo", title = "{UE event tunes and double parton scattering/Measurement of four-jet production in proton-proton collisions at sqrt(s) = 7 TeV;}", doi = "10.22323/1.203.0100", journal = "PoS", year = 2014, volume = "DIS2014", pages = "100" }