@article{10_4064_sm198_3_2,
     author = {Peter Stollmann},
     title = {A dual characterization of length spaces with
 application to {Dirichlet} metric spaces},
     journal = {Studia Mathematica},
     pages = {221--233},
     publisher = {mathdoc},
     volume = {198},
     number = {3},
     year = {2010},
     doi = {10.4064/sm198-3-2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm198-3-2/}
}