@article{DAN_1966_169_2_a1,
     author = {I. S. Iokhvidov},
     title = {Banach spaces with a $J$-metric. $J$-nonnegative operators},
     journal = {Doklady Akademii Nauk},
     pages = {259--261},
     publisher = {mathdoc},
     volume = {169},
     number = {2},
     year = {1966},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1966_169_2_a1/}
}