@article{PA_1996_3_a2,
     author = {A. T. Veresova and V. V. Mosyagin},
     title = {Multi-inner product-spaces in the theory of differential equations},
     journal = {Problemy analiza},
     pages = {25--27},
     publisher = {mathdoc},
     number = {3},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PA_1996_3_a2/}
}