@article{SM_1990_67_1_a12,
     author = {A. Yu. Khrennikov},
     title = {The correspondence principle in quantum field theory and relativistic boson string theory},
     journal = {Sbornik. Mathematics},
     pages = {209--233},
     publisher = {mathdoc},
     volume = {67},
     number = {1},
     year = {1990},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1990_67_1_a12/}
}