@article{Koerner:2014gR, author = "Koerner, Daniel and Wellegehausen, Björn Hendrik and Wipf, Andreas", title = "{MCRG Flow for the Nonlinear Sigma Model}", doi = "10.22323/1.187.0052", journal = "PoS", year = 2014, volume = "LATTICE 2013", pages = "052" }