@article{VMUMM_1991_5_a9,
     author = {P. I. Guerzhoy},
     title = {Symmetric squares of parabolic forms and {Jacobi-Eisenstein} series},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {59--62},
     publisher = {mathdoc},
     number = {5},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1991_5_a9/}
}