@article{FAA_1992_26_4_a12,
     author = {E. V. Ferapontov},
     title = {Dirac reduction of the hamiltonian operator $\delta^{IJ}\frac{d}{dx}$ to a submanifold of euclidean space with flat normal connection},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {83--86},
     publisher = {mathdoc},
     volume = {26},
     number = {4},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1992_26_4_a12/}
}