@article{10_4064_sm_13_2_183_187,
     author = {L. W{\l}odarski},
     title = {Sur une formule de {Efros}},
     journal = {Studia Mathematica},
     pages = {183--187},
     publisher = {mathdoc},
     volume = {13},
     number = {2},
     year = {1953},
     doi = {10.4064/sm-13-2-183-187},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-13-2-183-187/}
}