@article{DAN_1966_171_2_a3,
     author = {A. Dzhuraev},
     title = {Mutually adjoint boundary value problems for a system of three first order equations of composite type},
     journal = {Doklady Akademii Nauk},
     pages = {258--261},
     publisher = {mathdoc},
     volume = {171},
     number = {2},
     year = {1966},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1966_171_2_a3/}
}