@article{NUMA_1993__65_4_133722,
     author = {Jesse L. Barlow},
     title = {Perturbation results for nearly uncoupled {Markov} chains with applications to iterative methods.},
     journal = {Numerische Mathematik},
     pages = {51--62},
     publisher = {mathdoc},
     volume = {65},
     number = {4},
     year = {1993},
     zbl = {0792.65027},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1993__65_4_133722/}
}