@article{DAN_1991_319_3_a4,
     author = {M. L. Gerver},
     title = {On the matrix $F=\{1/[f_if_j(f_i+f_j)]\}$},
     journal = {Doklady Akademii Nauk},
     pages = {535--538},
     publisher = {mathdoc},
     volume = {319},
     number = {3},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1991_319_3_a4/}
}