@article{PORMA_1963__22_3_114903,
     author = {Marcus, Marvin and Yaqub, Adil},
     title = {Compound matrix equations},
     journal = {Portugaliae mathematica},
     pages = {143--151},
     publisher = {mathdoc},
     volume = {22},
     number = {3},
     year = {1963},
     zbl = {0126.02706},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1963__22_3_114903/}
}