@article{TMF_1976_29_1_a0,
     author = {A. N. Kvinikhidze and V. A. Matveev and A. N. Tavkhelidze and A. A. Khelashvili},
     title = {Spectral and projection properties of ``two-time'' {Green's} functions of $n$ particles in null-plane quantum field theory},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {3--17},
     publisher = {mathdoc},
     volume = {29},
     number = {1},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1976_29_1_a0/}
}