@article{MZM_1992_52_5_a20,
     author = {Yu. N. Baulina},
     title = {Fundamental solutions of the equation $x_1^2+\dots+x_n^2=mx_1\dots x_n$},
     journal = {Matemati\v{c}eskie zametki},
     pages = {136--137},
     publisher = {mathdoc},
     volume = {52},
     number = {5},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1992_52_5_a20/}
}