@article{DAN_1957_116_6_a18,
     author = {A. V. Karyakin and A. V. Shablya},
     title = {The structure of $9$-aminoacridine according to spectrum data},
     journal = {Doklady Akademii Nauk},
     pages = {969--972},
     publisher = {mathdoc},
     volume = {116},
     number = {6},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1957_116_6_a18/}
}