@article{PORMA_1953__12_4_114724,
     author = {Sternberg, Robert L.},
     title = {A theorem on {Hermitian} solutions for related matrix differential and integral equations},
     journal = {Portugaliae mathematica},
     pages = {135--139},
     publisher = {mathdoc},
     volume = {12},
     number = {4},
     year = {1953},
     mrnumber = {0060666},
     zbl = {0052.09301},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1953__12_4_114724/}
}