@article{PORMA_1993__50_2_115685,
     author = {Merikoski, J.K. and Virtanen, Ari and Bebiano, Nat\'alia and Provid\^encia, Jo\~ao da},
     title = {Interdependence of some problems arising in generalizing the {Marcus-de} {Oliveira} determinantal conjecture},
     journal = {Portugaliae mathematica},
     pages = {227--236},
     publisher = {mathdoc},
     volume = {50},
     number = {2},
     year = {1993},
     mrnumber = {1244503},
     zbl = {0804.15007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1993__50_2_115685/}
}