@article{TM_2004_245_a1,
     author = {V. S. Vladimirov},
     title = {Adelic {Formulas} for {Four-Particle} {String} and {Superstring} {Tree} {Amplitudes} in {One-Class} {Quadratic} {Fields}},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {9--28},
     year = {2004},
     volume = {245},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_2004_245_a1/}
}