@article{PA_1996_3_a4,
     author = {V. B. Eflov},
     title = {The reciprocity theorem for the vector transfer equation},
     journal = {Problemy analiza},
     pages = {37--43},
     publisher = {mathdoc},
     number = {3},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PA_1996_3_a4/}
}