@article{MABA_1997_11_3-4_a17,
     author = {Nickolay Tzvetkov},
     title = {Global {Existence} for {Semilinear} {Massless} {Dirac} {Equation} with {Small} {Data}},
     journal = {Mathematica balkanica},
     pages = {359},
     publisher = {mathdoc},
     volume = {11},
     number = {3-4},
     year = {1997},
     url = {http://geodesic.mathdoc.fr/item/MABA_1997_11_3-4_a17/}
}