@article{10_4064_sm_57_3_275_277,
     author = {A. Calder\'on},
     title = {An inequality for integrals},
     journal = {Studia Mathematica},
     pages = {275--277},
     year = {1976},
     volume = {57},
     number = {3},
     doi = {10.4064/sm-57-3-275-277},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-57-3-275-277/}
}