@book{justhis6414,
           title = {Les r{\`e}gles de route en mer},
          author = {R. de Ryckere and A. Bultinck},
         address = {Bruxelles},
       publisher = {Larcier},
            year = {1909},
             url = {http://www.just-his.be/eprints/6414/}
}