@article{AIF_2020__70_1_247_0,
     author = {Beauchard, Karine and Dard\'e, J\'er\'emi and Ervedoza, Sylvain},
     title = {Minimal time issues for the observability of {Grushin-type} equations},
     journal = {Annales de l'Institut Fourier},
     pages = {247--312},
     publisher = {Association des Annales de l{\textquoteright}institut Fourier},
     volume = {70},
     number = {1},
     year = {2020},
     doi = {10.5802/aif.3313},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/aif.3313/}
}