@book{justhis6409,
          volume = {4},
           title = {Trait{\'e} g{\'e}n{\'e}ral des servitudes fonci{\`e}res},
          author = {M. Hilbert},
         address = {Tamines},
       publisher = {Duculot},
            year = {1947},
             url = {http://www.just-his.be/eprints/6409/}
}