@article{CRMATH_2018__356_4_406_0,
     author = {Georgiev, Bogdan and Mukherjee, Mayukh},
     title = {On maximizing the fundamental frequency of the complement of an obstacle},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {406--411},
     publisher = {Elsevier},
     volume = {356},
     number = {4},
     year = {2018},
     doi = {10.1016/j.crma.2018.01.018},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2018.01.018/}
}