@article{COCV_2019__25__A77_0,
     author = {Franceschi, Valentina and Stefani, Giorgio},
     title = {Symmetric double bubbles in the {Grushin} plane},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     publisher = {EDP-Sciences},
     volume = {25},
     year = {2019},
     doi = {10.1051/cocv/2018055},
     mrnumber = {4039139},
     zbl = {1439.53033},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1051/cocv/2018055/}
}