@article{DAN_1961_139_4_a33,
     author = {Yu. L. Spirin and D. K. Polyakov and A. R. Gantmakher and S. S. Medvedev},
     title = {The polymerization of styrene, butadiene and isoprene, initiated by lithium~{\textendash} ethyl in various media},
     journal = {Doklady Akademii Nauk},
     pages = {899--902},
     year = {1961},
     volume = {139},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1961_139_4_a33/}
}