@article{DAN_1964_157_5_a26,
     author = {V. A. Puchkov and V. M. Stepanov and N. S. Vul'fson and A. M. Zyakun and V. F. Krivtsov},
     title = {Mass-spectrometer investigation of amino-acid methylthiohydantoins},
     journal = {Doklady Akademii Nauk},
     pages = {1160--1163},
     publisher = {mathdoc},
     volume = {157},
     number = {5},
     year = {1964},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1964_157_5_a26/}
}