@article{DAN_1961_137_6_a35,
     author = {M. I. Chudakov},
     title = {Secondary aromatic polynuclear structure of lignin},
     journal = {Doklady Akademii Nauk},
     pages = {1389--1392},
     publisher = {mathdoc},
     volume = {137},
     number = {6},
     year = {1961},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1961_137_6_a35/}
}