@article{DAN_1965_162_3_a31,
     author = {N. I. Shirokova and N. N. Sveshnikov and I. I. Levkoev},
     title = {Quaternary salts of $\beta$-chlorovinyl derivatives of heterocyclic bases as acting on certain carboand dimethinemerocyanine dyes},
     journal = {Doklady Akademii Nauk},
     pages = {603--606},
     publisher = {mathdoc},
     volume = {162},
     number = {3},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1965_162_3_a31/}
}