@article{DAN_1961_139_1_a25,
     author = {B. L. Dyatkin and E. P. Mochalina and I. L. Knuniants},
     title = {Condensation of formaldehyde with perfluorolefines~-- tetrafluorethylene, hexafluoropropylene and trifluorochlorethylene},
     journal = {Doklady Akademii Nauk},
     pages = {106--109},
     publisher = {mathdoc},
     volume = {139},
     number = {1},
     year = {1961},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1961_139_1_a25/}
}