@article{10_1090_S0894_0347_02_00398_3,
     author = {Xu, Jinchao and Zikatanov, Ludmil},
     title = {The method of alternating projections and the method of subspace corrections in {Hilbert} space},
     journal = {Journal of the American Mathematical Society},
     pages = {573--597},
     publisher = {mathdoc},
     volume = {15},
     number = {3},
     year = {2002},
     doi = {10.1090/S0894-0347-02-00398-3},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-02-00398-3/}
}