@article{TMF_1973_16_2_a2,
     author = {Yu. S. Tyupkin},
     title = {On the adiabatic definition of the $S$ matrix in the formalism of $L$ functionals},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {169--177},
     year = {1973},
     volume = {16},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1973_16_2_a2/}
}