@article{ASNSP_1997_4_24_3_451_0,
     author = {Bogachev, Vladimir I. and Krylov, Nicolai V. and R\"ockner, Michael},
     title = {Elliptic regularity and essential self-adjointness of {Dirichlet} operators on $\mathbb {R}^n$},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     pages = {451--461},
     publisher = {Scuola normale superiore},
     volume = {Ser. 4, 24},
     number = {3},
     year = {1997},
     mrnumber = {1612385},
     zbl = {0901.35017},
     language = {en},
     url = {http://www.numdam.org/item/ASNSP_1997_4_24_3_451_0/}
}