@article{FPM_1999_5_3_a3,
     author = {R. Coleman},
     title = {Constructing real canonical forms of {Hamiltonian} matrices with two imaginary eigenvalues},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {687--716},
     publisher = {mathdoc},
     volume = {5},
     number = {3},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_1999_5_3_a3/}
}