@article{AIF_1970__20_1_37_0,
     author = {Douglas, R. G. and Shapiro, H. S. and Shields, A. L.},
     title = {Cyclic vectors and invariant subspaces for the backward shift operator},
     journal = {Annales de l'Institut Fourier},
     pages = {37--76},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {20},
     number = {1},
     year = {1970},
     doi = {10.5802/aif.338},
     mrnumber = {42 #5088},
     zbl = {0186.45302},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/aif.338/}
}