@article{COCV_2018__24_1_401_0,
     author = {Cristoferi, Riccardo},
     title = {A second order local minimality criterion for the triple junction singularity of the {Mumford-Shah} functional},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     pages = {401--435},
     publisher = {EDP-Sciences},
     volume = {24},
     number = {1},
     year = {2018},
     doi = {10.1051/cocv/2017010},
     mrnumber = {3843190},
     zbl = {1401.49019},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/cocv/2017010/}
}