Dokl. Akad. Nauk SSSR, 1964 Volume 154, Number 6,Pages 1395–1397(Mi dan29229)
CHEMISTRY
The $\mathrm{La}(\mathrm{NO_3})_3$ – $\mathrm{HNO}_3$
– $\mathrm{H}_2\mathrm{O}$ – $(\mathrm{C}_4\mathrm{H}_9\mathrm{O})_3\mathrm{PO}$
extraction system at $25^\circ$ Ñ