@article{TVP_1997_42_3_a8,
     author = {L. R\"uschendorf and W. Thomsen},
     title = {Closedness of sum spaces and the generalized {Schr\"odinger} problem},
     journal = {Teori\^a vero\^atnostej i ee primeneni\^a},
     pages = {576--590},
     publisher = {mathdoc},
     volume = {42},
     number = {3},
     year = {1997},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TVP_1997_42_3_a8/}
}