@article{AA_1997_9_2_a9,
     author = {E. I. Yakovlev},
     title = {On the existence of solutions to two-point boundary value problems for gyroscopic systems of relativistic type},
     journal = {Algebra i analiz},
     pages = {256--271},
     publisher = {mathdoc},
     volume = {9},
     number = {2},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_1997_9_2_a9/}
}