@article{AA_2009_21_3_a0,
     author = {T. Erd\'elyi},
     title = {George {Lorentz} and inequalities in approximation},
     journal = {Algebra i analiz},
     pages = {1--57},
     publisher = {mathdoc},
     volume = {21},
     number = {3},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AA_2009_21_3_a0/}
}