@article{ETNA_2013__40__a23,
     author = {Du, Xiuhong and Sarkis, Marcus and Schaerer, Christian E. and Szyld, Daniel B.},
     title = {Inexact and truncated parareal-in-time {Krylov} subspace methods for parabolic optimal control problems},
     journal = {Electronic transactions on numerical analysis},
     pages = {36--57},
     publisher = {mathdoc},
     volume = {40},
     year = {2013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ETNA_2013__40__a23/}
}